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RideAnS [48]
4 years ago
8

Why do chicken embryo and a cow look very similar wven though the adults do not

Biology
1 answer:
mafiozo [28]4 years ago
4 0
This is caused by a genetic 'switch' where the animals all derived from a particular ancestor....hope this helps
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In humans, a type of blindness is due to a dominant allele; normal vision is the result of a recessive allele. Migraine headache
yan [13]

Answer:

Yes.

Probability of such child = 1/2 or 50%

Explanation:

According to the question, below are the genotypes and phenotypes possibilities:

aa = normal vision & no headache

Aa = normal vision & no headache

AA = blindness & headache

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Possible genotypes of progeny:            Aa        Aa           aa         aa

So it is clear that out of the 4 probable children, 2 with 'genotype aa' will have normal vision & no headache.

Mathematical expression is as under:

2/4 = 1/2 that means 50% progeny.

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Answer:

oxygen from reaching your tissues and organs.

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...I think.

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