3 years ago

Help please i need the answer for this pretest!

Biology

2 answers:

natali 33 [55]3 years ago

4 0

B, (layer C is the youngest layer) :)

inessss [21]3 years ago

3 0

Answer:

C) D!ke k is older than layer I

Explanation:

it seems as if k was there before everything else. due to the fact that it seems to be the lowest level.

it didnt let me put d i k e

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In flies, red eyes (r) are dominant to brown eyes (r). a heterozygous fly is crossed with homozygous recessive fly.

nadezda [96]

50% of offspring will have brown eyes

Explanation:

A heterozygous individual will have the genotype Rr while an individual who is homozygous recessive will have the genotype rr. A cross between the two will result in offspring with phenotype Rr and rr in the ratio of 1 : 1. This can be observed from the Punnet square attached. The same is the case for the phenotype. The ration of brown eyes to red eyes will be approximately 1 : 1