help plz ASAP
1. In Step 1, you see the bacteriophage is injecting something into the bacterial cell. What is it injecting? (1pt) *
2. Name the type of viral infection shown in the cycle that includes stages 1->2->3A->4A (1pt) *
3. Which stage indicates the formation of a prophage? (1pt) *
1
2
3A
3B

Answers

Answer 1

1. The bacteriophage is injecting its genetic material into the bacterial cell. The genetic material of the bacteriophage is DNA or RNA that could synthesize the protein needed for the virus replication. This will allow the virus to replicate itself inside the bacteria.

2. This type is called lytic cycle because the outcome of this cycle is the lysis(death) of the bacteria cell. In this phase, the genetic material of the virus will hijack the bacteria body and makes them replicate the virus. The lysis of bacteria allows the new virus to invade other bacteria.

3. Answer:3B
Prophage is a bacteriophage DNA that integrates with bacterial DNA. This will be found in the lysogenic cycle that was started at the 3B picture. In this cycle, the virus becomes dormant and won't replicate itself so the bacteria wouldn't lysis. The virus could become active and change into the lytic cycle if a certain condition met.

Answer 2

Final answer:

In the lytic cycle, the bacteriophage injects its genome into the bacterial cell. The type of viral infection shown in the cycle is lytic infection. The stage that indicates the formation of a prophage is Stage 3A.

Explanation:

In the lytic cycle of bacteriophages, the phage injects its genome into the bacterial cell. This genome contains the phage's genetic material, including its DNA or RNA. Once inside the bacterial cell, the viral genome takes control and uses the cell's machinery to produce new phages.

The type of viral infection shown in the cycle that includes stages 1->2->3A->4A is the lytic infection. In this type of infection, the phage quickly replicates inside the host cell, leading to the lysis or bursting of the cell, releasing new phages.

The stage that indicates the formation of a prophage is Stage 3A. During this stage, the viral DNA is integrated into the bacterial genome, forming a prophage. The bacterium in this state is called a lysogen and remains dormant until triggered to enter the lytic cycle.

Related Questions

What evidence would you need to show that genetic diversity is the result of reproductive character displacement?

Answers

Character displacement – trait evolution stemming from selection to lessen resource competition or reproductive interactions between species – has long been viewed as an important mechanism for enabling closely related species to coexist.

The sequencing of mitochondrial dna to trace changes in human ancestors over time involves which specialization of anthropology?

Answers

For the answer tot he questions above, the answer is "paleoanthropology"

It is also called human paleontology. It is a branch of anthropology that is concerned with the origins and development of the early humans.
I hope my answer helped you.

Your roommate is 5' 1" and weighs 100 lbs what bmi category would she be in

Answers

In this hypothetical situation the roommate would have a BMI of 18.9 which would be labeled as a Normal range of BMI.

What is an allele? a dna sequence different versions of a gene a hairstyle a physical trait?

Answers

i believe the answer is different versions of a gene :)

The ________ is not adequate for searching through large arrays

Answers

The linear/ sequential search algorithm is not adequate for searching though large arrays

Hope this helps!

algorithm

hope this helps (and that it is right)

Any chemical, physical, or biological changes in the environment that harms living organisms is called

Answers

The answer is - environmental hazard.
An environmental hazard represents a substance, as state or an event that has the potential to threaten the surrounding natural environment, or adversely affect the health of the people, also including pollution and natural disasters such as storms and earthquakes.

A type of white blood cell that engulfs foreign pathogens and activate lymphocytes is a(n)

Answers

I believe that the answer would be a phagocyte.

Phagocytes are a type of white blood cell that are found in bone marrow. They protect the body y engulfing foreign particles including pathogens.

I hope this helps! I'm happy to ask any other questions you might have :)

White blood cells are the specialized type of cells which are involved in the body's defense mechanism. Phagocytes such as Macrophages engulfs foreign pathogens and cell debris and activate lymphocytes present in the blood.

What are White blood cells?

White blood cells (WBC) are the specialized cells present in the blood which are responsible for the defense mechanism of the body against pathogens. White blood cells are of different types from which phagocyte is a major class.

Phagocytes are the class of white blood cells that are found in the bone marrow. They protect the body by engulfing the foreign particles such as pathogens and from cell debris.

Macrophage is a type of phagocyte. These are the body's first line of defense and play many roles. A macrophage is the primary cell which recognizes and engulf the foreign pathogens (antigens). Macrophages break down these foreign substances and present these smaller proteins to the T-lymphocytes.

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Plant hormones can have different effects at different concentrations. this explains how ________.

Answers

Plant hormones can have different effects at different concentrations. This explains how

auxin can stimulate cell elongation in apical meristems, yet will inhibit the growth of axillary buds

Concentration produce different effects on plant hormones which explains why auxin at low concentration induce growth in apical meristems but at higher concentrations inhibit growth of axillary buds.

What are plant hormones?

Plant hormones are chemical substances produced by plants which modify and regulate the growth and development of plants.

Plants hormones include the following:

auxin abscissic acid ethylene

Plant hormones can have different effects at different concentrations. At higher concentrations they may have inhibitory effects while at low concentrations, they may have stimulatory effects.

For example auxin at low concentration induce growth in apical meristems while at higher concentrations, they inhibit growth of axillary buds.

Therefore, concentration produce different effects on plant hormones.

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What common bone structure is shared in the forelimbs of the lobe fin fish and amphibians?

Answers

The common bone structure that is shared in the forelimbs of the lobe fin fish and amphibians are the humerus, radius, ulna, and finger bones. Tetrapods are related by the presence of the named bones. Tetrapods includes all limbed vertebrates constituting the classes Amphibian, Reptilia, Aves, Mammalia.

Large blood vessels that carry blood away from the heart to body tissues are called

Answers

The Answer is The Arteries

When compared to the leg muscles of an olympic sprinter, the muscles of an olympic marathoner would likely show a greater proportion of oxidative slow-twitch fibers?

Answers

This is a true statement.
The human body has two types of skeletal muscle fibers: slow-twitch and fast-twitch. Slow-twitch fibers are used for long-endurance actions, such as a marathon, while fast-twitch fibers are used for sudden bursts of movements such as a sprint. Therefore, an Olympic marathoner will have a greater proportion of oxidative slow-twitch fibers when compared to an Olympic sprinter.

when grass is cut with a lawn mower, it gives off a distinct aroma. why does newly-mowed grass smell a little bit sweet?

Answers

It may smell pleasant but the plants are releasing stress signals called green leaf volatiles (GLV). this is an adaptation to warn other grass patches of the 'impending danger '. These compounds also help the grass heal it's wounds faster and prevent infections by pathogens.

Answer:

When the grass leaves are cut, a small amount of sugar is produced at the site of injury to plug the phloem.

Explanation:

I took the test and it's the correct answer hope it helps!

What characteristic is true of between 80 and 90 percent of the labor in most export processing zones (epzs)?

Answers

The characteristic that is true of between 80% and 90% of the labor in most export processing zones is that they are women. Export processing zones are areas within developing countries which offer incentives and a barrier-free environment to promote the economic growth by attracting foreign investment for export-oriented production. They are specific type of free trade zone that are set up to promote industrial and commercial exports.

Where are new skin cells produce to replace old cells that have been shed?

Answers

The production of the new skin cells occurs at the basal layer of the epidermis.

The skin is composed of three layers:

1. The epidermis- The outermost layer of the skin. Waterproof with the protective role and which serves as a barrier to infection. It also has its own layers (from the top): stratum corneum, stratum lucidum (only on hands and bottoms of feet), stratum granulosum, stratum spinosum, stratum basale.

The cells of stratum basale are constantly going through mitosis to produce new cells (keratinocytes) and as new cells are formed, the existing cells are pushed superficially away from the stratum basale.

2. The dermis,

3. The hypodermis.

i can confirm this is the answer.

The production of the new skin cells occurs at the basal layer of the epidermis.The skin is composed of three layers:1. The epidermis- The outermost layer of the skin. Waterproof with the protective role and which serves as a barrier to infection. It also has its own layers (from the top): stratum corneum, stratum lucidum (only on hands and bottoms of feet), stratum granulosum, stratum spinosum, stratum basale.The cells of stratum basale are constantly going through mitosis to produce new cells (keratinocytes) and as new cells are formed, the existing cells are pushed superficially away from the stratum basale.2. The dermis,3. The hypodermis.

How do mirnas function in controlling gene expression? view available hint(s) how do mirnas function in controlling gene expression? by binding to dna and preventing transcription of certain genes?

Answers

I believe the miRNAs function in controlling gene expression by binding to the mRNAs and degrading them or blocking their translation. MicroRNAs are short non-coding RNAs that regulate gene expression post transcriptionally. They bind to the 3'-UTR of their target mRNAs and repress protein production by destabilizing the mRNA and translational silencing.

Final answer:

miRNAs are key components in gene regulation, working not by binding to DNA but by binding to mRNAs post-transcription. Their interaction with mRNAs results in mRNA degradation or inhibition of translation, suppressing specific gene expression.

Explanation:

MicroRNAs, commonly referred to as miRNAs, play a crucial role in the regulation of gene expression. Unlike the student's proposition, miRNAs do not generally bind to DNA. Instead, they function by binding to messenger RNAs (mRNAs) after transcription has occurred. The interaction between the miRNA and the mRNA typically results in the mRNA's degradation or the inhibition of its translation into a protein, thus preventing the expression of the corresponding gene.

These small non-coding RNA molecules are key components in the post-transcriptional regulation of gene expression, and can suppress the expression of specific genes through a process known as RNA interference. The ability of miRNAs to control gene expression makes them important regulators of various biological processes, including cell growth, differentiation, and apoptosis.

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In theory, a population grows most quickly at ____ % of the environment's carrying capacity

Answers

The answer to this question is 50%

Discuss the adaptations of vascular plants to life on land

Answers

Answer:
Vascular plants are successful land plants. Spermatophyte (seed plants) is the largest group of vascular plants having two sub classes, angiosperms and gymnosperms. It include 300 families, 12500 genera and 300000 known species. The most successful and and important of these plants belong to Gramineae or the grass family with 7500 known species, which have colonized the great area of earth surface in particularly all sort of soil and climatic conditions and constitute the main source of man's food supply.

Factors responsible for success
1. Their adaptability to all kinds of environments.
2. The production of flowers, fruits and seeds, which show various adaptations for dispersal over large area.
3. These plants posses cuticle a thick cover around the epidermis which help in maintaining water or prevent dehydration.
4. Stomata are pesent in leaves or lenticle in stem which regulate the in and out of CO₂, O₂ and H₂O.
5. Well develop root system which help in absorption of mineral and other nutrients.

when did the human population begin to grow at a faster rate than at any other time in history

Answers

During the industrial revolution, the population of the Western world started to increase quickly. Since the 1950s, the population of the world has increased significantly.

Which period saw the fastest growth in the human population?

The world population doubled at the quickest rate between 1950 and 1987, growing from 2.5 to 5 billion people in just 37 years. This represents a population increase of around one generation. During this time, population growth peaked in 1962 at 2.1%.

When did the exponential growth of the human population begin?

The population doubled in the 19th century, tripled in the 20th century, and reached 6 billion in the year 2000. This exponential increase was caused by breakthroughs in medicine, science, and the economy.

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Final answer:

The human population began growing at an unprecedented rate during the Industrial Revolution in the late 18th century, accelerating during the 20th century, primarily due to technological, agricultural, and medical advancements that improved living conditions and life expectancy.

Explanation:

The human population began to grow at a faster rate than at any other time in history around the start of the Industrial Revolution in the late 18th century. This marked the beginning of what is often called the population explosion. Advancements in technology, agriculture, and medicine have all contributed to exponential growth. The global population growth rate accelerated further during the 20th century and continues to grow in the 21st century. The shift from very slow growth to rapid increase can be visualized by the shape of a J-curve in population graphs.

For example, it took millennia for the human population to reach 1 billion around 1800 CE, and only a little over a century later, the population reached 2 billion. Within less than another century, an additional 5 billion were added, showcasing the exponential nature of recent population growth. Scientific advancements and industrialization played significant roles in creating conditions for the population to grow at previously unseen rates, which includes improved health care, increased food production, and better sanitation.

A pregnant woman who is a vegan needs to take ______ nutrient supplements.

Answers

A pregnant woman who is a vegan needs to take calcium and iron nutrient supplements. When a woman is pregnant the developing fetus needs a lot of calcium to build bones and teeth. It also helps the baby to grow a healthy heart, nerves, and muscles as well as develop a normal heart rhythm and blood-clotting abilities. Iron is also important as the woman body would need it to make extra blood for the mother and the baby during pregnancy.

Respiratory organs have large surface areas. how is this an advantage to an animal?

Answers

Large respiratory surface areas help an organism to have a more efficient gas exchange. The respiratory surface consists of an alveolar epithelial cell and a pulmonary capillary endothelial cell and it enables the movement of O2 and CO2 through it. The movement goes from the alveolar air into the blood for the O2, while CO2 moves in the opposite direction. With larger surface area more erythrocytes can pass and the more O2 can be received.

A herpetologist wants to estimate how many snakes are in a forest. She counts 12 snakes in a 100,000 square foot area. Estimate how many snakes are in the entire forest of 7,000 acres.
(1 acre = 43,560 square feet)
Please help me solve thus

Answers

Answer:

Approximately 36 522

Explanation:

First convert 100 000 square ft to acres = 2.3

Using ratio method:

[tex]x = \frac{12 x 7000}{2.3} \\ = 36 521.7[/tex]

A scientist finds the bones of a dinosaur. what could help the scientist determine the approximate age of the dinosaur bones

Answers

The biggest help for the scientists may be provided by the ground layer in which the bones were found. If the layer of ground is not disturbed, than the scientist can easily see the time periods from the structure and color of the ground, and thus determine the time period from when the fossil originates and the approximate age of it.

Answer:

Explanation:

the kinds of trees living in the area of the bones

Which disease is characterized by porous bones? osteomalacia rickets osteosarcoma osteoporosis?

Answers

Its Osteoporosis, also known as porous bones. Which is characterized by weak brittle bones and low bone mass. Both men and women are affected by this disease.

A nursing instructor is working with a class of first semester nursing students. the instructor explains the interrelatedness of health and wellness. what would be the best definition the nursing instructor could give of health?

Answers

health is relating to ones physical nature, and wellness is a broader spectrum relating to overall well being...IE: physical and mental

Water-soluble nutrients absorbed into the blood are routed directly from the small intestine through the portal vein to the __________ before any other organ.:

Answers

Water-soluble nutrients stored in blood are routed directly from the small intestine through the portal vein to the liver before any other organ. The portal vein or hepatic portal vein is a blood vessel which carries blood from the GI tract, to the liver. The blood contains nutrients and toxins extracted from digested contents. The portal vein is not a true vein, since it conducts blood to capillary beds in the liver and not directly to the heart. It is the main component of the hepatic portal system.

Final answer:

Water-soluble nutrients absorbed from the small intestine are sent directly to the liver via the portal vein for processing before reaching other parts of the body.

Explanation:

Water-soluble nutrients that are absorbed into the blood are sent directly from the small intestine through the portal vein to the liver before any other organ. The hepatic portal system is a critical component in the body's nutrient distribution system, where the liver acts as a processing plant. Nutrient-rich blood from the small intestine, where most absorption occurs, reaches the liver for detoxification, storage, or metabolic processing before being circulated to the heart and throughout the body.

__________are inpatient treatment facilities that focus on the "resocialization" of the individual and use the program's entire community as important treatment components. question 13 options:
a.therapeutic communities
b.medical detoxification clinics
c.matrix communities
d.all of these are correct.

Answers

the answer is A. therapeutic communities

hope this helps you!

Answer is a. therapeutic communities.

Therapeutic communities are a common form of long-term residential treatment for substance use disorders. These communities provide drug-free environments in which people with addictive problems live together in an organized and structured manner to promote change toward recovery and re-socialization. Some such groups evolved into self-supporting and democratically run residences to support abstinence and recovery from drug use.

Which of the following is defined as the age structure, sex ratio, and reproductive capacity of a population? Composition Distribution Dynamics Migration

Answers

The answer would be Composition

Answer:

The correct answer is option A, Composition

Explanation:

The population composition is the representation of population distribution based on the factors such as age, sex, culture, ethnic values etc. It is very essential component of population studies. There can be following types of population composition -

a) Based on age

b) Based on sex

c) Based on ethnic values

d) Based on religion

e) Based on caste

f) Based on language

g) Based on occupation

Heterozygous alleles are found on ________ chromosomes

Answers

24 pairs of chromosomes

Answer is Homologous.

A diploid individual having two different alleles for a specific trait is called heterozygous. An allele is the alternative form of the same gene. The cells in diploid organisms contain sets of homologous chromosomes, which are paired chromosomes. Each chromosome of a homologous pair has the same genes on the same positions. Although homologous chromosomes have the same genes, they may have different alleles for those genes.

Example: The gene for seed color trait in a pea plant exists in pair. One gene or allele for yellow seed (R) and the other for green seed color (r). A heterozygous plant would contain alleles for seed color (Rr). Gene R is present one chromosome and its allele (r) is present on the other chromosome of the homologous pair.

What happens if the human egg is not fertilized? see section 42.2 (page 797) . view available hint(s) what happens if the human egg is not fertilized? see section 42.2 (page 797) . the egg is retained within the ovary. the corpus luteum degenerates. another egg will be ovulated immediately. chorionic gonadotropin levels increase?

Answers

if the egg is not fertilized the woman will have a period, and then we have to deal with rage monsters for a week.

Vitamin d regulates the absorption of ______ from the small intestine. calcium and fluoride phosphorus and magnesium calcium and magnesium calcium and phosphorus

Answers

Final answer:

Vitamin D is crucial for the absorption of calcium and phosphorus from the small intestine. It facilitates the intake of these minerals, which are key to bone health and the prevention of skeletal diseases like rickets and osteomalacia.

Explanation:

Vitamin D regulates the absorption of calcium and phosphorus from the small intestine. It is essential for bone health because it promotes the synthesis of a specific calcium-binding protein, which is involved in the active transport of calcium across the small intestinal mucosa. Moreover, vitamin D facilitates the intestinal absorption of calcium and phosphorus, which are vital components of bone in the form of calcium phosphate and calcium carbonate.

Without adequate vitamin D, the body cannot effectively absorb calcium from the diet, leading to potential skeletal problems such as rickets in children and osteomalacia in adults, which may contribute to osteoporosis.

Thus, sufficient intake of vitamin D is critical not only for the absorption of calcium but also for maintaining normal calcium concentration in the blood and for the process of bone remodeling.

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