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Viefleur [7K]
3 years ago
11

Identify the genotypes of the male and female flies used in cross 2.

Biology
1 answer:
ANTONII [103]3 years ago
3 0

Answer:

Mother - XAXA

Father - XY

Explanation:

Please see the attached image - complete question

Solution -

In the second cross the female is affected while the male is unaffected

The disease mentioned in the question is dominant X inked which means even one X chromosome can cause the disease. Thus, it will impacts males more than females.

Let the allele representing a diseased X gene be XA

and the allele for normal X gene be X

The offspring have all diseased males, which means that the genotype of affected female will be XAXA

And the genotype of unaffected male will be XY

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Australopithecina or Hominina is a subtribe in the tribe Hominini. The members of the subtribe are generally Australopithecus (cladistically including the genera Homo, Paranthropus,[2] and Kenyanthropus), and it typically includes the earlier Ardipithecus, Orrorin, Sahelanthropus, and Graecopithecus. All these related species are now sometimes collectively termed australopithecines or homininians.[3][4] They are the extinct, close relatives of humans and, with the extant genus Homo, comprise the human clade. Members of the human clade, i.e. the Hominini after the split from the chimpanzees, are now called Hominina[5] (see Hominidae; terms "hominids" and hominins).

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