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Marat540 [252]
2 years ago
14

The number of major histocompatibility (MHC) protein combinations possible in a given population is enormous. However, an indivi

dual in that diverse population has a far more limited array of MHC molecules because ________.
Biology
1 answer:
attashe74 [19]2 years ago
6 0

Answer:

The correct answer is "each of the MHC genes has a large number of alleles, but each individual only inherits two for each gene".

Explanation:

In normal conditions, an individual has only two different alleles for a given gene: one inherited from his mother and the other from his father. However, this does not mean that among humans, there are only two different alleles for each gene. The major histocompatibility (MHC) genes are a clear example of this, since there are multiple combinations for each MHC class. For instance, there are 40 very similar alleles only for the HLA-B27 subtype.

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Muscle cells contain numerous __________ to serve their high demand for atp.
Harrizon [31]
Muscle cells, also known as myocytes, contain numerous amounts of mitochondria inside of their cytoplasm. Mitochondria are organelles that are popularly known as the powerhouse of the cell because they function to process different biochemicals (such as glucose, oxygen, etc) and produce essentially Adenosine Triphosphate (ATP). Kreb's Cycle in particular talks about energy production, and the mitochondria is one of the main units where this cycle happens. You can think of ATP as the currency of the body in terms of energy. The more ATP one has, the more energy there is available for use by the different systems of the body. Muscles in particular have high demand for ATP.
4 0
2 years ago
A reduction in the lateral angle of the glenohumeral joint in relation to the anatomical position would be called __________.
sleet_krkn [62]

Answer:

adduction

Explanation:

3 0
2 years ago
Rosa drew a diagram to compare substitution mutations and insertion mutations.
djverab [1.8K]
<h2>Hey There!</h2><h2>_____________________________________</h2><h2>Answer:</h2>

\huge\boxed{Option A}

<h2>_____________________________________</h2><h2>Mutations:</h2>

Mutations are the changes produced in the nucleotide sequence of the genome.

There are four main types of mutations

Substitution

Insertion

Deletion

Duplication.

<h2>_____________________________________</h2><h3>DELETION:</h3>

A small segment of chromosome mat be missing. This condition is known as deletion.

For example, Normal chromosome has A B C D E F G. If deletion mutation occurs then mutated chromosome has A D E F G and B C got deleted.

<h2>_____________________________________</h2><h3>DUPLICATION:</h3>

In this condition, a part of chromosome present in exec ess to the normal chromosome.

For example, Normal Chromosome has A B C D E F G. If duplication mutation occurs, then mutated chromosome had A B C B C D E F G and B C is duplicated.

<h2>_____________________________________</h2><h3>SUBSTITUTION MUTATION:</h3>

Substitution is a type of mutation where one base pair is replaced by a different base pair.

For example, in the sequence CAAGT, if C replaces G, it is a substitution mutation.

<h3>INSERTION MUTATION:</h3>

In genetics, an insertion is the addition of one or more nucleotide base pairs into a DNA sequence.

For example, in the sequence CAAGT, if extra base G gets inserted after C, the new sequence would be CGAAGT.

<h2>_____________________________________</h2>

Both substitution and insertion mutations change the position of nucleotide thus, the type of amino acid.

<h2>_____________________________________</h2><h2>Best Regards,</h2><h2>'Borz'</h2>

3 0
1 year ago
Read 2 more answers
Gene duplication and divergence is thought to have plated a critical role in the evolution of increased bilogical complexity
LUCKY_DIMON [66]
A. true is the answer
5 0
2 years ago
Read 2 more answers
Plants that evolved vascular tissue are more advanced than plants without vascular tissue. Most importantly, possession of vascu
aliya0001 [1]

Answer:

The correct answer will be option-D

Explanation:

The evolution of vascular tissues in plants from non-vascular plants was an adaptive feature to survive in the terrestrial environment.  The group of plants in which vascular tissues evolved and developed is the Pteridophytes which contained stellar organization of the vascular bundles.

The pteridophytes exhibited xylem and phloem which allows the rapid uptake of the water and nutrients from the soil which allowed the growth of the plant and since plants got enough water and nutrients from the soil, they adapted to grow tall so that they can maximize the output of photosynthesis in bright sunshine.

Thus, option-D is the correct answer.

6 0
2 years ago
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