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BartSMP [9]
3 years ago
10

A cell contains 1 pair of chromosomes. One chromosome contains the R. E, and L alleles. The other chromosome contains the r, e,

and 1 alleles. At the end of cell division, the genotypes of the resulting gametes are 50% REL and 50% rel.
a. Which type of cell division occurred? Mitosis Meiosis
b. Is there evidence of crossing over in prophase I? Yes No Not applicable
c. How did you make the above conclusions? or
Biology
1 answer:
GalinKa [24]3 years ago
3 0
Biología es una buenas materia pero esto ya no le entiendo y está en otro idioma
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HD (Huntington's disease) is a genetic neurological disorder that occurs due to damage and death of brain  cells. it is caused by an autosomal dominant mutation in HTT (huntingtin) gene, having a trinucleotide repeat section that makes HTT protein.

The mutation leads to an increase in this nucleotide repeat count, associated with formation of altered or mutated huntingtin protein. These altered proteins show deleterious affect on brain cells and result in Huntington's disease.

Thus, the correct answer is 'option A). a mutated gene.'

 

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When Mr. T’s blood pressure dropped, his heart rate increased. Which part of his autonomic system was responsible for this respo
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Medulla oblongata is responsible for autonomic regulation system.

Explanation:

Autonomic regulation is a controlling system that regulates different function of body such as heart rate,digestion,blood pressure,urination,respiratory rate,papillary response etc.

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Autonomic dysfunction occur when autonomous nervous system damages,and the effect may be mild to life threatening.

Autonomic activity may leads to certain kind of side effects like-

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What type of chromosomal abnormality can lead to multiple copies of a gene, some of which can incur mutations that can lead to t
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A trisomy is a chromosomal condition characterized by an additional chromosome. A person with a trisomy has 47 chromosomes instead of 46.

Trisomy means the presence of an extra chromosome in some or all of the body's cells. This results in a total of three copies of that chromosome instead of the normal two copies. For example, Down syndrome (trisomy 21) is caused by having three copies of chromosome 21 instead of the usual two copies.

This genetic condition is the result of a genetic mutation where your cells don't divide as they should. You can't prevent this abnormality from happening during cell division.

To learn more about trisomy here

brainly.com/question/15114915

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