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Nonamiya [84]
2 years ago
8

The tightly controlled process by which immunoglobulin genes rearrange such that only a single heavy chain and light chain are e

xpressed is called:
Biology
1 answer:
melamori03 [73]2 years ago
8 0

The mechanism of somatic recombination known as V(D)J recombination only takes place in developing lymphocytes at the beginning of T and B cell maturation. As a result, B cells and T cells, respectively, have a very varied repertoire of antibodies/immunoglobulins and T cell receptors (TCRs).

<h3>What are immunoglobulin genes ?</h3>

Only B cells can make immunoglobulins, which are encoded by the immunoglobulin genes. The two identical heavy chains that make up immunoglobulin molecules are coupled with the two identical light chains, kappa and lambda. There are numerous chromosomal locations where the immunoglobulin genes are found.

  • B-cell immunoglobulin gene rearrangement tests are used to help diagnose non-Hodgkin B-cell lymphomas and evaluate for residual or recurrent disease after treatment. There are many different types of B-cell lymphoma and each has different characteristics, prognoses, and a likely response to therapy

Learn more about Immunoglobulin genes here:

brainly.com/question/7263907

#SPJ4

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All of these ___ help to block, trap or flush pathogens out of the body.
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Answer:

natural barriers

Explanation:

skin, mucous membrane, tears, earwax, muscus, stomach acid

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Very large premolar and molar teeth, a sagittal crest, heavy mandibles, and wide zygomatic arches are found in modern gorillas,
Dovator [93]

Answer:

The correct answer will be option- Australopithecus.

Explanation:

<em>Australopithecus</em> is an extinct genus of a large group of animals called primates. This genus is closely related to humans which may or may not be ancestors of <em>Homo sapiens</em>.

Australopithecus exhibits traits of both ape and human-like which is distinguished by the small size of the brain, smaller canine teeth but large molar and premolar teeth, broad dish-shaped face, sagittal crest, large molar teeth, flared zygomatic arches and sloping forehead.

Thus, option- Australopithecus is the correct answer.

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3 years ago
Which cell structure is responsible for supplying energy in both plant and animal cells?
JulsSmile [24]

Answer: Mitochondria

Explanation:

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4 0
3 years ago
In sexually reproducing multicellular organisms, the main functions of mitosis are
victus00 [196]
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5 0
3 years ago
George Beadle concluded that teosinte is the likely ancestor of maize (corn), even though the two plants appear very different.
Oliga [24]

Answer:

Option B

Explanation:

ALL options are as follows -

a. teosinte and maize can produce fertile hybrids.

b. teosinte and maize have similar chromosomes.

c. Both Teosinte and maize have naked, soft kernel.

d. Teosinte and maize can produce fertile hybrids

Solution

Beadle started working on maize genetics since 1962 after joining graduate school at Cornell University.  

During his research he found that the chromosomes of teosinte and maize possess higher similarity and also show signs of intercross ability of the two species and hence confirmed that wild teosinte is an ancestor of domesticated maize.  

He later concluded that there are only 4 to 5 genes that make these two species different from each other rest all is similar.  

Option B is correct

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3 years ago
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