Answer:
Helper T cells
Killer T cells
Explanation:
The two main types of T cells are –
a) Helper T cells
b) Killer T cells
The function of these two cells is as follows –
a) Helper T cells – These act as messenger for the immune system of the body. They don’t do anything by themselves but through chemical messaging they pass on the information to other cells of the immune system.
b) Killer T cells – These cells find and attack the infected cells. They are able to distinguish between the healthy cell and infected cell.
Freckles are small, spots of a skin pigment called melanin. Most fair-skinned, red-haired people have them. Freckles are controlled primarily by the MC1R gene. Freckles are a dominant trait: parents who have freckles tend to have children with freckles. Bill and Barb both have freckles. Yet of their four children, one child does not have freckles! What must be the genotypes of Bill and Barb?
A) BB and BB
B) BB and Bb
C) Bb and Bb
D) Bb and bb
its d Bb and bb i think sorry if its wrong
Answer:
The correct answer would be C) Bb and Bb.
The phenotype of both parents is a dominant trait. Thus, both of them must contain at least one copy of the dominant allele.
Therefore, the genotype of both parents would be B_.
Case I: When both parents are homozygous dominant, that is, BB. All the offspring would be BB, that is, all have freckles.
Case II: When one parent is homozygous dominant and other is heterozygous, that is. BB and Bb. All the offspring would be either BB or Bb. Thus, all the offspring would have freckles.
Case III: When both the parents are heterozygous dominant, that is, both are Bb. The offspring can have BB, Bb, or bb. One out of four children would have no freckles.
Thus, the correct answer would be C) Bb and Bb.
Type of reproduction takes place in archaebacteria and eubacteria
Answer:
Explanation:
Before knowing their reproduction process let's first understand what is Archaebacteria and Eubacteria.
Archaebacteria- are the oldest living anaerobic organisms on earth. They are unicelled prokaryotes and can live in extreme conditions like inside a volcano vent, hot springs and acidic/alkaline aquatic environment.
Reproduction- They reproduce by asexual reproduction process. Binary fission takes place where the genetic material is duplicated and then the cell wall pinches off from the center and thereof divides into two new daughter cells. They may also divide by fragmentation or budding.
Eubacteria- are the most common organisms found and are known as the true bacteria. They are of single celled prokaryotic origin and have no nucleus, They occur commonly in three shapes i.e. round, rod and spiral.
Reproduction- Mostly, they reproduce by binary fission, where the parent cell divides into two new daughter cells. But some may divide by a process called budding where an outgrowth takes place in the parent cell which gets separated later and the parent cell remains with the new cell formed.
what role do producers and consumers play in the carbon cycle
Answer:
Carbon cycle refers to the biogeochemical cycle by which carbon is exchanged between atmosphere, hydrosphere, geosphere, and biosphere.
Producers like plants use carbon dioxide present in the atmosphere and fix carbon into organic compounds.
Thus, producers fix carbon and make it available in usable forms for consumers.
Consumers use carbon in the form of organic compounds such as glucose and use it for cellular respiration. It releases carbon back into the atmosphere in the form of carbon dioxide.
Thus, consumers return carbon to the atmosphere.
How many layers of phospholipids make up the plasma membrane?
3 layers
hope I helped
The distance from a wave's equilibrium point to its crest is known as what? Amplitude Trough length Wavelength Wave height
Its amplitude i just took this test and got it right
HELLO ....ANYBODY....HELP ME PLS!!!!!??! ASAP
WILL MARK BRAINLIEST PTS TO WHOEVER GETS THIS RIGHT
Sally is examining some untitled diagrams. One diagram shows a cotyledon, primary leaf, and hypocotyls, whereas the other diagram shows presence of coleoptile, primary leaf, and primary root. What do these diagrams depict?
germinating seeds of a dicot and a monocot respectively
germinating seeds of a monocot and a dicot respectively
fertilizing ovules of a monocot and dicot respectively
A 28-year-old male is admitted to the burn unit 2 hours after receiving second- and third-degree burns over 50% of his body surface in an industrial explosion. abnormal vital signs include low blood pressure and tachycardia. lab results show a high hematocrit due to:
How would the extinction of tiger sharks impact the biodiversity of oceans?
All of these are methods by which a cell..
- Diffusion
- Osmosis
- Active Transport
A. Maintains homeostasis
B. Creates energy
C. Removes waste
D. Reproduces
All veins return blood to the heart. all veins return blood to the heart.
a. True
b. False
Briefly describe how the artificial manipulation of plasmids has been used for technological applications
The incorporation of a desired gene from specie to another is achieved using plasmids. We can also say it is used to incorporate a desired gene from particular specie to specie. It is also genetic modification.
The process by which the genetic makeup of an organism is altered is known as genetic modification or genetic engineering.
Examples in this case would be to take a plasmid into antibiotic-resistant bacteria and put it into bacteria that are not resistant to antibiotic, for that reason plasmid insertion into the bacteria that are not resistant to antibiotic would make it to be resistant to antibiotic.
Plasmids are a small molecule of DNA within a cell physically separated from a chromosomal DNA and is able to replicate independently. Plasmids are mostly found in bacteria as small circular, double-stranded DNA, though they are also presents in archaea and eukaryotic organisms.
Plasmids typically can be found in bacterial cells and the gene they carried has advantage towards bacteria (antibiotic resistance). Plasmids are wide in lengths, from about 1000 base pairs to hundred thousands of base pairs.
Plasmids are commonly used by scientists as tools to clone and manipulate genes. Plasmids that are used for these particular purposes are called vectors.
LEARN MORE:
How has the artificial manipulation of plasmids been used for technological applications?? https://brainly.com/question/2034365KEYWORDS:
resistant to antibiotic desired gene genetic modification base pairs bacteria
30+ POINTS
In the process of cellular respiration, there are three main stages. Name the stages AND the beginning and ending products of each stage.
"The three main stages of cellular respiration are:
1. Glycolysis:
- Beginning product: Glucose (C6H12O6)
- Ending products: 2 Pyruvate (C3H4O3) molecules, 2 ATP (Adenosine triphosphate), and 2 NADH (Nicotinamide adenine dinucleotide + hydrogen) molecules.
2. Citric Acid Cycle (also known as Krebs Cycle or TCA Cycle):
- Beginning product: Acetyl CoA (derived from the breakdown of Pyruvate)
- Ending products: 2 ATP, 6 NADH, 2 FADH2 (Flavin adenine dinucleotide + hydrogen), and 2 CO2 (carbon dioxide) molecules.
3. Electron Transport Chain (ETC) and Oxidative Phosphorylation:
- Beginning product: NADH and FADH2 from the previous stages
- Ending products: A large amount of ATP (the exact number can vary, but it is much more than the other stages), water (H2O), and heat.
In summary, the stages and their respective beginning and ending products are as follows:
- Glycolysis: Begins with glucose and ends with pyruvate, ATP, and NADH.
- Citric Acid Cycle: Begins with acetyl CoA and ends with ATP, NADH, FADH2, and CO2.
- Electron Transport Chain and Oxidative Phosphorylation: Begins with NADH and FADH2 and ends with ATP and water.
These stages collectively convert the energy stored in glucose into ATP, which cells can use for various metabolic processes. The overall process of cellular respiration starts with glucose and ends with the production of ATP, CO2, and water."
The process by which an rna copy is made from dna.
Managing southeastern forests specifically for the red-cockaded woodpecker _____.
Which enzyme builds the new strand by adding nucleotides?
DNA polymerase is the enzyme that builds a new strand of DNA by adding nucleotides, essentially replicating the DNA for cell division.
Explanation:The enzyme that builds the new strand by adding nucleotides is called DNA polymerase. DNA polymerase synthesizes the new DNA strands from the deoxyribonucleotide triphosphates, which are the building blocks of the DNA molecule. It works by 'reading' the template DNA strand and adding complimentary nucleotides to the growing DNA chain. Essentially, it assembles the DNA strand in a 5' to 3' direction, and in doing so, it helps to replicate the DNA within a cell so that it can be properly divided during cell division.
Learn more about DNA polymerase here:https://brainly.com/question/32273501
#SPJ6
In an experiment to determine whether green plants take in co2, a biologist filled a large beaker with aquarium water to which she added bromothymol blue
Read the two statements given below. Statement 1: All living things generate from air, water, and fire Statement 2: The children accidently triggered the smoke alarm Which of the following best relates the statement to the correct type of theory? Both statements are about scientific theories. Both statements are about everyday life theories. Statement 1 is about an everyday life theory, and statement 2 is about a scientific theory. Statement 1 is about a scientific theory, and statement 2 is about an everyday life theory.
Answer: statement two i think
The stronger the stimulus, the more powerful the action potential. true or false?
The human abo blood type is an example of dominance or codominance
While sampling marine plankton in a lab, a student encounters large numbers of fertilized eggs. the student rears some of the eggs in the laboratory for further study and finds that the blastopore becomes the mouth. the embryo develops into a trochophore larva and eventually has a true coelom. these eggs probably belonged to a(n)?
During extended periods of heat, many plants close their stomata. how does this behavior most likely benefit the plant?
What role do polyunsaturated fatty acids play in the brain and spinal cord? what role do polyunsaturated fatty acids play in the brain and spinal cord? they deplete the brain's glycogen levels. they regulate calcium within normal ranges. they block the production of vessel-clogging cholesterol. they help transmit information between cells of the brain and spinal cord?
The perioperative nurse is caring for a client who requires an umbilical hernia repair but who has a known family history of malignant hyperthermia. the client has been prescribed dantrolene 2.5 mg/kg iv one hour before surgery. the client weighs 121 lbs. the nurse reconstitutes a single-use vial as per the manufacture's instructions, yielding a solution with a concentration of 50 mg/ml. how many ml of the reconstituted dantrolene solution should the nurse add to the client's bag of intravenous fluid?
The nurse is caring for a 79-year-old patient. the patient has had diabetes for 10 years and comes to the hospital for regular checkups. the nurse finds that the patient has developed a nonhealing wound on the left foot. the nurse is dressing the patient's wound. while performing the dressing, the nurse is unsure about the dilution of the antiseptic solution to be used. what should the nurse do
Diaphragmatic breathing is a relaxation technique used to relieve anxiety.
a. true
b. false
Diaphragmatic breathing is a relaxation technique used to relieve anxiety. Also called abdominal breathing and deep breathing. This statement is true.
Why is diaphragmatic breathing relaxing ?Diaphragmatic breathing can be used purposefully to lessen the stress reaction. Abdominal breathing promotes the body to relax and controls the nervous system, which has a number of positive effects on health.
Deep breathing, also known as diaphragmatic breathing, allows more air to enter your body and can help you relax, which lowers stress and anxiety. Additionally, it can help you increase your attention span and lessen your pain.
GI patients are taught the simple method of diaphragmatic breathing, often known as deep breathing or belly breathing, to assist them manage stress brought on by GI disorders. It is useful to urge the body to relax by concentrating on the breath.
Thus, Diaphragmatic breathing is a relaxation technique used to relieve anxiety.
To learn more about diaphragmatic breathing, follow the link;
https://brainly.com/question/28233610
#SPJ12
The dictionary defines equilibrium as a situation in which forces
The cooled lava pools on the surface of a crater are called what?
1. Craters
2. Terrae
3. Maria
4. Reoglith
Answer:
Maria
Explanation: K12
What is the role of the human liver in regulating the composition of body fluids?
The enzyme lactase breaks the sugar lactose into which compound(s)
The enzyme lactase breaks the sugar lactose into two simple sugars: glucose and galactose. These can be absorbed into the bloodstream and used for energy.
Explanation:The enzyme called lactase plays a vital role in the human digestive system. Specifically, this enzyme breaks down the sugar lactose, which is found in dairy products, into two simpler sugars: glucose and galactose. These simple sugars can then be easily absorbed into the bloodstream and used by the body for energy. For example, if you consume a glass of milk, the lactase enzyme in your small intestine will break the lactose present in the milk down into glucose and galactose.
Learn more about Lactase Enzyme here:https://brainly.com/question/32416279
#SPJ3
The enzyme lactase breaks down the sugar lactose into glucose and galactose. These are simpler monosaccharide units, which the body can easily absorb and use for energy.
Explanation:The enzyme lactase breaks down the sugar lactose, a disaccharide, into simpler compounds. These compounds are two monosaccharides, namely glucose and galactose.
This process is vital for the digestion of lactose found in dairy products. If an individual does not produce sufficient lactase, the lactose cannot be broken down properly. This can lead to lactose intolerance, where the undigested lactose causes gastrointestinal symptoms.
Learn more about Lactase enzyme here:https://brainly.com/question/20959828
#SPJ6
Please help I WILL GIVE METALS AND BECOME A FAN!!!
during an experiment, a scientist observed prokaryotes that lived near volcanic vents deep in the ocean. The scientist most likely observed
a) photoautotrophs
b) chemoautotrophs
c) heterotrophs
d) photoheterotrophs
what might people do to prevent the devolopment of more superbugs?
a) they should use antibotics only when nessary
b) they should devolop stronger antibotics and use them often
c) they should use stronger disinfectants
d) they should not get vaccinated
there are 9 questions on this test here is 2 the rest are,