Can someone tell me if this is correct

Biology

2 answers:

tiny-mole [99]3 years ago

7 0

Answer:

Normal Eyes = 75%

Heart eyes = 25%

Explanation:

3 of the offspring in that punnet square have at least 1 dominant allele. And if an offspring has at least 1 dominant allele then it should have the dominant trait( which is normal eyes ). But if it only contains recessive alleles then it would have the recessive trait (which in this case would be heart eyes).

Dmitriy789 [7]3 years ago

6 0

Ily I hope your having a good day lol

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Glucose-6-phosphate dehydrogenase deficiency (G6PD) is inherited as an X-linked recessive gene 43) in humans. A woman whose fath

LiRa [457]

Answer:

50% or 1/2. The result remains unchanged if the husband were to have G6PD.

Explanation:

For X-linked recessive inheritance, a female (XX) needs two recessive alleles to be affected while a male needs only one (XY). It is hypothetically assumed that the Y chromosome does not carry any trait.

Assuming the allele for the disease is represented by g, a woman whose father suffered from G6PD is a carrier for the disease with genotype $X^GX^g$ . A normal man will have the genotype $X^GY$ . When the 2 marries:

$X^GX^g$ x $X^GY$ = $X^GX^G (normal female), X^GY (normal male), X^GX^g (carrier female), X^gY (affected male)$ It thus means that 50% or 1/2 of their sons will be expected to have G6PD.

Now, assuming the husband has G6PD, the mating becomes:

$X^GX^g$ x $X^gY$ = $X^GX^g (carrier female), X^GY (normal male), X^gX^g (affected female), X^gY (affected male)$ 50% or 1/2 of their sons is still expected to have G6PD. The ratio remains unchanged.