Oswald avery showed that
a. cells missing protein and rna were able to transform r cells into s cells and kill mice, but cells missing dna could not.
b. cells missing dna were able to transform r cells into s cells and kill mice, but cells missing protein and rna could not. selected:
c. cells missing dna, protein, and rna were able to transform r cells into s cells and kill mice.this answer is incorrect.
d. cells missing dna, protein, and rna were not able to transform r cells into s cells and kill mice. 1/1 question 16

Answers

Answer 1
a. cells missing protein and rna were able to transform r cells into s cells and kill mice, but cells missing dna could not.
This proved that DNA was the important genetic material that was transferred during transformation.

Related Questions

A nurse is providing discharge instructions for a client with a diagnosis of gastroesophageal reflux disease (gerd). what should the nurse advise the client to do to limit symptoms of gerd

Answers

eat small, frequent meals, avoid heavy lifting, avoid drinking alcohol. 

To manage GERD symptoms, avoid heavy lifting and drinking alcohol, eat small, frequent meals, and stay upright after eating. Additionally, avoid certain foods and consider weight loss, smoking cessation, and loose clothing. Medical treatment options are available if lifestyle changes are insufficient. Option a, c, d are correct.

The nurse would provide the following recommendations to a client with Gastroesophageal Reflux Disease (GERD) to limit symptoms:

Avoid heavy lifting: This helps reduce abdominal pressure, which can exacerbate reflux symptoms.Avoid drinking alcohol: Alcohol can weaken the lower esophageal sphincter and increase acid production.Eat small, frequent meals: This can help prevent the stomach from becoming too full and reduce reflux.Remain upright for at least three hours after eating: Lying down after eating can cause acid to move up into the esophagus.Avoid foods that worsen GERD symptoms, such as fatty foods, peppermint, chocolate, coffee, and spicy foods.

In addition, weight loss for those who are overweight, quitting smoking, and avoiding tight-fitting clothing can also help manage GERD symptoms. If lifestyle modifications are not effective, medications or surgery may be necessary.

Complete question as follows:

The nurse is providing discharge instructions for a client with a diagnosis of gastroesophageal reflux disease (GERD). Which recommendations would the nurse give to the client to limit symptoms of GERD?

a. Avoid heavy lifting

b. Lie down after eating

c. Avoid drinking alcohol

d. Eat small, frequent meals

e. Increase fluid intake with meals

f. Wear an abdominal binder/girdle

What is the correct chromosomal condition at prometaphase of mitosis?

Answers

Final answer:

In prometaphase of mitosis, chromosomes compact and become visually distinguishable, the nuclear envelope breaks down, and the mitotic spindle's microtubules attach to the kinetochores on the chromosomes.

Explanation:

During the prometaphase of mitosis, the chromosomal condition is that each chromosome compacts and becomes visually distinguishable under a light microscope. The nuclear envelope begins to break down, and the chromosomes, composed of two sister chromatids, free in the cytoplasm of the cell. Moreover, the microtubules from each centrosome, constituents of the mitotic spindle, attach to a specific protein structure on the centromere of each chromosome called a kinetochore. This ensures that each daughter cell receives an equal distribution of chromosomes during the ensuing mitotic phase, metaphase.

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Which component of peanut butter rutf supplies essential amino acids?

Answers

Which component of peanut butter rutf supplies essential amino acids? Your Answer will be Peanut Butter 

Peanut butter contains amino acids such as isoleucine and methionine.

What is peanut butter?

About 61.6 grams of protein are found in one cup of peanut butter. Additionally, peanut butter is only sufficiently rich in 4 of the 9 necessary amino acids, including isoleucine, lysine, methionine, threonine, and valine.

To complement the protein profile, combine peanut butter with carrots, pumpkin seeds, hedge mustard seeds, crimini mushrooms, or lotus seeds.

Peanut butter does contain abundant amounts of 4 out of the nine essential amino acids. However, peanut butter is a little short on isoleucine, lysine, methionine, threonine and valine.

Therefore, Peanut butter contains amino acids such as isoleucine and methionine.

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these group of cells represent different ___

a. organelles that carry out different functions
b. tissues in which similar cells function together
c. organs that help to carry out a specific life activity
d. systems that are responsible for a specific life activity

thanks!! xoxo

Answers

In the image, these groups of cells perform the same function. The correct answer is "tissues in which similar cells function together". For instance, the cells from the bladder lining, collectively, have the ability to transform from stratified to squamous epithelium therefore accommodating the storage of urine. 

Answer:

b. tissues in which similar cells function together

Explanation:

I got it right on my test.

What do all carbonate minerals have in common?

Answers

they are on the periodic table

How can pools of blood aid in reconstructing a crime scene?

Answers

The presence or absence of blood can give valuable information about the nature of a crime. A crime scene with minimal blood but massive wounds to a victim can tell investigators that the site was a possible body dump and not the true scene of the murder.

A crime scene with blood but no victim can also give information. A person cannot survive if too much blood is lost so investigators can tell that the missing individual has been killed because of the amount of blood present.


A specimen is 0.2 mm long. Calculate the length of its image if it magnified by 1000 times.

Answers

200 cause 0.2 times 1000 is 200
magnification is equal to the ratio of image height(H) to the object height(h)
Therefore,

m=H/h

1000=H/0.2

H = 1000 * 0.2

So,
Image height (H) = 200 mm

If an experiment starts with 6 bacteria cells and ends with 96 bacteria cells, how many generations did the cells go through?

Answers

The bacterial cells went through 4 generations.
6 --> 12 --> 24 --> 48 --> 96
Final answer:

In order to calculate the number of bacteria generations, you use logarithms. Taking the log base 2 of the final number of bacteria divided by the initial number gives approximately 4 generations.

Explanation:

The generational growth of bacteria cells is typically exponential, doubling with each generation. Since we're starting with 6 cells and ending up with 96, we need to figure out how many times 6 needs to be doubled to get 96. This can be calculated by using the formula of logarithm base 2. Firstly, divide 96 by 6 to get approximately 16 then, calculating the base 2 logarithm of 16, gives us about 4. So the cells went through about 4 generations.

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What is the safest way to carry a microscope? One student should hold onto the base and one student shouldWhat is the safest way to carry a microscope? One student should hold onto the base and one student should grasp the arm. Two students should hold opposite sides of the microscope base. Place one hand under the base and grasp the arm with the other hand. Place both hands securely around the base of the microscope. grasp the arm. Two students should hold opposite sides of the microscope base. Place one hand under the base and grasp the arm with the other hand. Place both hands securely around the base of the microscope.

Answers

place one hand under the base and grasp the arm with the other.


hope I helped ;)

Answer:  Place one hand under the base and grasp the arm with the other hand.

A microscope is a device that is used to magnify and observe small living and non-living entities. These microscopes are expensive instruments  and need to be handle carefully. The correct way to handle a microscope is to place the hand under the base of the microscope, this provides support to the instrument. The other hand should be used to grasp the arm, this provides a hold over the instrument. This is the safest way that assures proper handling and transfer of microscope from one place to another manually.

Trees do not move like birds do but they are living things. why

Answers

Trees aren't made biologically the same way as birds. For this same reasons this is why humans don't "fly". Yes, we have developed technologies to create an atmosphere forgoing the fact that we don't have wings or 'webbed' limbs to help us fight the force of gravity while in the air. This is why trees cannot fly, because they are born that way biologically for a purpose, to convert carbon dioxide to oxygen.

Which plane shows brain structures as they would be seen from the front?

Answers

The plane that shows brain structures as seen from the front is the frontal or coronal plane. This vertical plane divides the brain into front and back regions. It runs parallel to the eyes or ears.

The vertical plane that shows brain structures as they would be seen from the front is called the frontal or coronal plane. This plane runs parallel to the eyes or ears and divides the brain into front (anterior) and back (posterior) regions. For example, a slice of the brain taken along the coronal plane would look similar to slicing a loaf of bread with the eyes at the front, allowing you to see both the left and right side structures positioned frontally.

Dna is wrapped around proteins called _____ to form a chromosome.

Answers

Final answer:

DNA in eukaryotic cells is wrapped around histone proteins to form nucleosomes, which create the 'beads on a string' structure. These are further compacted to form chromosomes, especially during cell division.

Explanation:

DNA is wrapped around proteins called histones to form a chromosome. Eukaryotic DNA, which is negatively charged due to phosphate groups, is tightly wound around these positively charged histone proteins. The formation begins with DNA winding around an octamer of histones to create a structure known as the nucleosome. This structure resembles "beads on a string", with each "bead" representing a nucleosome and the string being the linker DNA.

The arrangement is then coiled into a 30 nm fiber and, during cell division, becomes even more densely packed into chromosomes by additional scaffold proteins. This packaging method is central for fitting DNA into the nucleus of eukaryotic cells and for the regulation of gene expression.

Property Expected from Muscle Fibers..?

Answers

it would be the first one
Final answer:

Muscle fibers are complex multicellular units equipped with several components that enable their functional properties, most importantly muscle contraction. These include the sarcolemma (plasma membrane), sarcoplasm (cytoplasm), sarcomeres (functional unit), and several other structures and proteins. There are also different types of muscle fibers that use different metabolic methods to generate ATP, the energy for muscle contraction.

Explanation:

Skeletal muscle fibers are long, multinucleated cells contained within a plasma membrane, the sarcolemma. The cytoplasm of the cell is referred to as sarcoplasm, which along with the specialized smooth endoplasmic reticulum or sarcoplasmic reticulum plays an important role in the property of muscle contraction through the release and retrieval of calcium ions. The functional unit of a muscle fiber is the sarcomere, an organized arrangement of actin and myosin filaments that, through a series of steps, shorten to produce movement.

The number of sarcomeres and myofibrils within a muscle fiber, which can be influenced by factors such as hormones and stress, can result in hypertrophy, increasing the mass of a muscle, or, if muscle use is decreased, atrophy, wherein the muscle mass decreases. The three types of skeletal muscle fibers, slow oxidative, fast oxidative, and fast glycolytic, each use a different metabolic method to generate ATP, the energy for muscle contraction.

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The main energy resource used by industrialized countries is

Answers

Fossil fuels. Industrialized countries use coal and gas to run their cars, heat their homes, and provide electricity.

Light energy from the sun is converted by plants into _____. electricity chemical energy leaves mechanical energy

Answers

Light  energy   from    sunlight   is  converted  by  plant  into  chemical  energy.This  chemical  energy  is  temporarily   stored   in ATP  and  the   energy  carrier  molecules  that is  NADPH.      This  involve  a   process  known  as  photosynthesis  whereby  radiation  energy  from   sunlight   is   converted to  chemical  energy .Photosynthesis  involve  a  series    of  steps   and  uses  solar  energy,water  and   carbon  dioxide  to  produce  organic  compounds

Answer:

chemical energy

Explanation:

The vascular pressure that declines from roughly 35 mm hg to about 18 mm hg is the

Answers

The correct answer is "capillary hydrostatic pressure". 

The 35 mmHg is the pressure in the arterioles. This pressure will go down as there is an increase in resistance to blood flow in the arterioles before going to the capillaries. 18 mmHg capillary hydrostatic pressure is roughly the average of the arterial pressure and the venous pressure.

Which statements describe the characteristics of an individual protein? Check all that apply.
It is specific to one biochemical reaction.
It increases the activation energy needed for a reaction.
It can catalyze many different reactions.
It increases the rate of a biochemical reaction.
It slows down the rate of a biochemical reaction.

Answers

It is specific to one biochemical reaction.

It increases the rate of a biochemical reaction.


The characterstics of individual protein are:-

it is specific to one biochemical reactionit increases the rate of a biochemical reactionWhat are proteins?

Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acids.

What is biochemical reaction?

It is the transformation of one molecule to a different molecule inside a cell.

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The type of line recognized by the brain and eyes but is not actually present.

Answers

Implied line

Hope I helped! ♡

How does the structure of a red blood cell relate to its function?

Answers

The main function of a red blood cell transport the oxygen throughout the body to other cells. It has haemagoblin that allow the binding of oxygen. It’s biconcave shape maximizes the surface area to increase efficiency of oxygen absorption and allows it to “squeeze” through narrow vessels and can enter thinnest capillaries through the body. Red blood cells don’t have a nucleus, so it increases the oxygen capacity.
Help this helps! ;)

Due to its biconcave shape, red blood cells have the ability to deliver the amount of oxygen to various organs and tissues of the body of an individual.

What do you mean by Red blood cells?

Red blood cells may be defined as a type of blood cell that is made in the bone marrow and found in the blood which contains hemoglobin.

Red blood cells do not have a nucleus in their structure and contain hemoglobin which increases the affinity of oxygen to bind with it and transport this bound oxygen to the whole body through the transport of bounded oxygen with hemoglobin particles.

Therefore, the function of RBCs with respect to their structure is described above.

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A cell is placed in a water solution with the same salt concentration as the cell. The cell is placed in a _____.

hypotonic solution
hypertonic solution
isotonic solution

Answers

Isotonic solution.
Since it has the same salt concentration as the cell the solution is neither hypotonic or hypertonic.

The answer is isotonic solution.

Which human activity does not affect the Earth system? (1) disposing of toxic wastes (2) converting solar energy (3) clearing land for farming (4)
burning natural gas and coal

Answers

Converting Solar Energy
I think the answer is converting solar energy

In starfish, pink boy color(P) is dominant to orange(p) , and thick eyebrows(T) are dominant over thin(t) ones. Patrick , who is heterozygous for body color but purebred for thick eyebrows , has met Patti , who is recessive for both traits.


What's patti's phenotype?

Is it possible for the new couple to have offspring that resmeble their mother? explain?

Answers

Phenotype is the actual description of the traits based on the genotype. The genotype of Patti is pptt both recessive so both recessive traits are expressed. So her phenotype is orange-colored with thin eyebrows

To answer your question 2, we can use a Punnett Square:
Genotype of the parents:
PpTT and pptt

        PT       PT       pT        pT
pt   PpTt   PpTt     ppTt     ppTt
pt   PpTt   PpTt     ppTt     ppTt
pt   PpTt   PpTt     ppTt     ppTt
pt   PpTt   PpTt     ppTt     ppTt

Remember that dominant traits are always expressed. Based on the Punnett square that there is always a dominant T trait in each, which means that the offsprings of Patrick and Patti would have thick eyebrows.  The mother Patti has thin eyebrows. So the answer is no in terms of eyebrows.

When it comes to skin color, for the offsprings to be the same as their mother, the genotype of the skin color should be both pp, and there are 8 out of 16 squares, so there is a 50% chance that they will have orange skin.

If the condition is that they should have both thin eyebrows and orange skin, then the answer is it would be impossible.  

How do worms reproduce?
a. only sexually.
b. only asexually.
c. both sexually and asexually.
d. none of the above?

Answers

They reproduce asexually

Worms, depending on the species, can reproduce option c. both sexually and asexually. Annelids, like earthworms, can reproduce in both ways, whereas flatworms generally reproduce sexually.

They fertilize their own eggs after exchanging sperm with another worm during sexual reproduction. They can also reproduce asexually by budding or fission, for example.

Flatworms, on the other hand, typically reproduce sexually. After fertilization, a single flatworm produces both eggs and sperm, and the eggs turn into larvae outside the adult flatworm's body.

Nematodes, like C. elegans, also use a variety of reproductive methods. Depending on the species, these may include dioecious reproduction, monoecious reproduction, self-fertilizing hermaphrodites, or even asexual reproduction through parthenogenesis.

If aden- means gland, what word could mean a tumor of the sebaceous glands?

Answers

Final answer:

The term for a tumor of the sebaceous glands combining 'aden-' for gland and '-oma' for tumor is 'sebaceous adenoma', which is a benign growth originating from the oil-producing sebaceous glands.

Explanation:

If the term "aden-" refers to a gland and we are discussing a tumor of the sebaceous glands, the medical term for such a tumor would often include the suffix "-oma", which refers to a tumor. Thus, the word that could describe a tumor of the sebaceous glands is "sebaceous adenoma". A sebaceous adenoma is a benign tumor that arises from the sebaceous glands which are responsible for producing sebum.

Sebum is the oily substance that helps to lubricate and protect the skin and hair. While sebaceous adenomas are usually not serious and often do not require treatment, they could potentially indicate an underlying condition if they are multiple or irregular.

Which shows the pathway of the egg through the reproductive system?
A. ovary → fallopian tube → vagina → uterus
B. vagina → uterus → fallopian tube → ovary
C. fallopian tube → ovary → uterus → vagina
D. ovary → fallopian tube → uterus → vagina

Answers

The answer would be D. Every egg starts in the ovaries. Hope this helps.

Answer:

D. ovary → fallopian tube → uterus → vagina

Explanation:

The egg/ovum develops in ovary. Ovary is a specialized organ in female reproductive system which is meant for the production and development of ovum. The ovum lies with in the follicle present inside ovary. The follicles mature from primordial follicle to primary follicle which then matures into secondary follicle, secondary follicle in turn matures into tertiary follicle and eventually it forms graafian follicle within the ovary. During the development of ovum, these follicles undergo several physiological changes. On the day of ovulation, graafian follicle ovulates its egg into the fallopian tube which is a part of female reproductive system. The fallopian tube has finger like projections named fimbriae which act as the receptor of the ovum. After that comes uterus which is also known as womb where embryo gets implanted. The uterus ends in vagina which is a part of birth canal.

Tundra means “treeless land.”
True or False

Answers

True, a vast, flat, treeless Arctic region of Europe, Asia, and North America in which the subsoil is permanently frozen.
Final answer:

The statement that 'Tundra' means 'treeless land' is true. Tundra is a term used to describe the barren landscapes in extreme latitudes of the Earth where trees can't grow due to harsh conditions.

Explanation:

The statement is indeed true. 'Tundra' is a term used in physical geography that really means 'treeless land'. This term is generally used to describe the cold and often barren landscapes found in the extreme northern or southern latitudes of the Earth, where the harsh climate conditions make it difficult for trees to grow. In a tundra biome, most of the vegetation consists of grasses, mosses, and lichens, all of which are better adapted to the cold temperatures and short growing seasons.

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The genetic makeup of a trait is represented by two letters. what do these letters represent?

Answers

The two alleles, one inherited from each parent

Should commercial fruit farmers be allowed to use ethylene to accelerate the ripening of fruit for the market? Why or Why not?

Answers

The answer is: NO

Accelerated ripening of fruits lowers the quality of the fruits because it circumvents the  natural process of ripening. In some cases of accelerated ripening, one finds a premature fruits looking ripe. In other cases, it causes ununiform ripening and also causes  hastened senescence reducing shelf life.

The commercial fruit farmers should not be allowed to use ethylene.

Though ethylene is a natural growth regulator in the plant, if it is not applied in limited  quantity it produces adverse effects such as overly ripened fruits, yellowing of green fruits and fruit becoming excessive soft and loose to pre maturity. It leads to chlorophyll destruction and also inhibits vegetative tissue. It also inhibits auxin transport, flower development, shoot and root growth.

Habitat destruction is the leading cause for declining populations of species on our planet. Due to human development, industry, and forestry, humans are destroying the habitat of many species at an alarming rate. Consider the bald eagle. The bald eagle population was threatened in the late 60s and early 70s. Thanks to an aggressive bald eagle protection program, bald eagle numbers in the wild have soared as seen in the population graph above. The bald eagle's population very nearly reached extinction. Why did the bald eagle's declining population make it more vulnerable to extinction? A) As populations decline, reproduction stops B) As populations decline, less resources are available C) As populations decline, there is less genetic diversity D) As populations decline, birds migrate farther away from other populations

Answers

The answer is C) As populations decline, there is less genetic diversity. This is called the 'founder effect'. With limited numbers of individuals in a population, it is more likely that highly-related individuals will mate. This will result in recessive and deleterious genes being manifested in the phenotype. Consider that higher organisms are diploid: they contain two complete sets of chromosomes, one from each parent. Within each chromosome, some alleles will be dominant while others will be recessive, i.e., for the recessive alleles to be manifested in the phenotype, both have to be recessive, whereas for the dominant allele, only one of the alleles has to be dominant for the allele to manifest in the phenotype. With lower genetic diversity, a higher proportion of individuals will have chromosomes containing both recessive alleles, which may manifest as lowered fitness and genetic disorders.   

 C)  As populations decline, there is less genetic diversity

As populations decline, there is less genetic diversity The bald eagle's population reached alarmingly low numbers due to habitat loss and with low populations, there is not as much genetic variability. With fewer variations, a species survival is difficult to overcome without conservation efforts.

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He movement of which kind of molecules is controlled by osmosis?

Answers

Osmosis is the controlled movement of free water molecules though a selectively semi-permeable membrane from a region of high water concentration to a region of low water concentration. Using this definition osmosis will be the movement of water molecules.
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