1)Red-green color blindness is a sex-linked recessive trait in humans. Two people with normal color vision...

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Biology

1)Red-green color blindness is a sex-linked recessive trait inhumans. Two people with normal color vision have a color-blind son.What are the genotypes of the parents?
A)XⁿXⁿ and XⁿY
B)X^NX^N and X^NY
C)X^NXⁿ and X^NY
D)X^NX^N and XⁿY
2)A poison interferes with the action of RNA polymerase II, butnot RNA polymerase I or III. Which of the following is likely to betrue of a cell exposed to the poison?
A)production of tRNA would be stopped but not rRNA or mRNA.
B)production of mRNA would be stopped but not rRNA or tRNA.
C)A cell could perform transcription but not translation
D)The cell would ignore the G1 checkpoint and eventually becomecancerous.

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Ans 1XNXn and XNY Colour blindness is a sex linked recessive trait so in males presence of even one copy of color blindness allele on X chromosome will make the male colour blind In females to be colour blind both X chromosome must carry a copy of the See Answer

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