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Ipatiy [6.2K]
4 years ago
7

Somatic hypermutation of V genes ​

Biology
1 answer:
zaharov [31]4 years ago
4 0

Answer:

Somatic hypermutation is a process in which point mutations build up in the antibody V-regions of both the heavy and light chains.

This process occurs at rates that are about 106-fold higher than the background mutation rates observed in other genes.

It allows B cells to mutate the genes that they use to produce antibodies. This then ensures the B cells to produce antibodies that are better able to bind to bacteria, viruses and other infections.

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Cells are adapted to preform specific functions. Which of the following terms refers to this capability?
valentinak56 [21]

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A cell is the smallest basic unit of life, it is the fundamental unit of life that can replicate to give other cells. Tissues is a group or a collection of cells that have been specialized to perform a specific function. There are four main types of tissues in humans namely, connective tissues, epithelial tissues, muscle and nervous tissue. A group of tissues then forms an organ and then several organs forms an organ system

Explanation:

5 0
3 years ago
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Summary of natural influences of a savanna.
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The African savanna ecosystem is a tropical grassland with warm temperatures year-round and with its highest seasonal rainfall in the summer. The savanna is characterized by grasses and small or dispersed trees that do not form a closed canopy, allowing sunlight to reach the ground. The African savanna contains a diverse community of organisms that interact to form a complex food web.

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3 years ago
suppose you are studying a fruit fly's DNA and you discover a gene for antenna length on chromosome 2. what word describes its l
soldier1979 [14.2K]

Answer:

<h2>In all flies,on the same Locus, on chromosome 2 at the same place you find the gene for antenna length.</h2>

Explanation:

In all fruit flies ,on the same  Locus, on chromosome 2 at the same place you find the gene for antenna length

All fruit flies contain same amount of gene and chromosomes, so the location of all gene in all fruit flies found at the same location.

A gene for antenna length in all fruit flies on chromosome 2 is present on same the location.

3 0
3 years ago
What accounts for the differences in the properties of the various polysaccharides?
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Polysaccharides are present in all living organisms where they carry out one or more of their diverse functions. While there is no specific category or definition of a complex polysaccharide, most are structurally complex. Polysaccharides contain 1–5 different monosaccharide (sugar) units. The different sugar units may have different anomeric configurations and/or be joined by different glycosidic linkages. Polysaccharides may be linear or branched. Branches may be short saccharide units on a linear backbone or the molecule may have a branch-on-branch structure; in either case, the branches may be isolated or clustered. Polysaccharides may contain non‐carbohydrate groups. Esters or cyclic acetal groups, when present, can be removed by appropriate treatments. All polysaccharides are polydisperse, i. e., are present in a range of molecular weights rather than having a single molecular weight

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3 years ago
From its atomic number of 15, it is possible to predict that the phosphorus atom has ________.
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Answer:

15 protons and 15 electrons

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