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TiliK225 [7]
3 years ago
15

Chorionic villi sampling (CVS) is a test to determine whether fetal cells have genetic abnormalities and can be performed as ear

ly as 8 weeks. Chorionic villi cells are removed using a small tube that is passed through the cervix. These cells are cultured and undergo chromosomal analysis.
Explain why chorionic villi cells will determine whether the fetus has genetic abnormalities.
Biology
1 answer:
DedPeter [7]3 years ago
8 0

Answer:

The zygote is formed by the fusion of the male and female gamete during the process of sexual reproduction. Chorionic villi sampling (CVS) is used to determine the sex of the baby and genetic abnormalities.

The fetal cells and chorionic villi has the same genome. The villib are derved from the cells known as trophoblast that are known to form the blastocyst outer layer. This provide nutrition to the embryo through the placenta. These cells first differentiate from the egg and shares the same genetic makeup. Any abnormalities in these  cells shows the genetic abnormalites.

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What defines a group of interbreeding individuals that are reproductively isolated from other such groups?
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Biological species.

Explanation:

Various concept like morphology species concept, ecological species concept was introduced by the scientists to explain the biological species. The biological species concept is accepted today.

The biological species concept explains that the group of interbreeding population that has the ability to reproductively isolated from the other such group.

Thus, the correct answer is option (c).

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D. The methyl group of acetyl CoA becomes radio-labeled

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Predict the fur color of the offspring of a brown heterozygous rabbit and a white homozygous rabbit. Brown is dominant and white
fgiga [73]

Answer:

To predict the results of the offspring from a cross between brown heterozygous rabbit and a white homozygous rabbit, a punnet square can be drawn as follows:

        b        b

B   Bb         Bb

b   bb         bb

The results from the punnet square show that there is 2:2 ratio that the offspring will be brown coloured or white coloured. The genotype of the rabbits will either be heterozygous brown i.e Bb or homozygous white bb.

there is a 50% chance that the offspring will be brown rabbit and there is also a 50% chance that the offspring can be a white rabbit.

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4 years ago
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