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oksano4ka [1.4K]
3 years ago
7

How does a human end up with an extra chromosome?

Biology
1 answer:
Burka [1]3 years ago
8 0

Answer:

It’s a change in gentic cells, or are missing extra chromosomes

Explanation:

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.. Which of the following mutations would have the potential to affect future generations of
ch4aika [34]

Answer choices:

  • A frame shift mutation in the X chromosome of a cheek cell
  • A chromosomal mutation in the Y chromosome of a kidney cell
  • A point mutation in the first chromosome of a sperm cell
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Answers:

A point mutation in the first chromosome of a sperm cell

Explanation:

Only mutations that affect the germ line are passed on to the next generation. Therefore, only mutations in the egg and sperm of an individual have the potential to affect the next generation.

Mutations in cheek cells, kidney cells, and uterus cells might cause cell death or cancer. This genetic material is not passed on to the next generation, only the egg and sperm contribute this material. Therefore, only mutations here will affect the generation.

4 0
3 years ago
Black fur (B) is dominant over white fur (b) in guinea pigs. Cross a homozygous black and a heterozygous black.
Dominik [7]
All of the offspring will display the black fur phenotype. The offspring will consist of 50% Homozygous Dominant and 50% heterozygous
B B
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B | BB BB
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b | Bb Bb
5 0
3 years ago
What information on a pedigree can tell you whether a gene is a autosome or a sex chromosome ???
My name is Ann [436]

Answer:

What information on a pedigree can tell you whether a gene is on a autosome or not a sex chromosome? If in a pedigree, the occurrence of the disorder is 50/50 between females and males, then it shows that it is autosomal. If the disorder is mostly shown in males then it is a sex-linked trait.

Explanation:

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What is the difference between the ""one gene-one protein"" and ""one gene-one polypeptide"" hypotheses?
mars1129 [50]

Answer:

"One gene-one protein" hypothesis states that one gene codes for one protein while the "one gene-one polypeptide" hypothesis states that one gene codes for one polypeptide chain of a protein having more than one type of polypeptide chains.

Explanation:

Beadle and Tatum proposed the one gene-one protein concept to explain the one-to-one correspondence between genes and proteins. Accordingly, one gene carries information to encode one protein. Since enzymes are proteins with catalytic power, a gene encodes the information to produce a single enzyme.

The "one gene-one protein" concept was later modified into the "one gene-one polypeptide" hypothesis. According to the "one gene-one polypeptide" hypothesis, one protein may have more than one polypeptide chain. One gene carries the genetic information to encode one polypeptide. Therefore, a protein with more than one type of polypeptide chains will be encoded by more than one gene.

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Photosynthesis is the process where plants use sunlight and natural elements to produce their food. It is done in the chloroplasts.
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