7. King Midas poison dart frogs are found in two distinct color variations: gold

Question

7. King Midas poison dart frogs are found in two distinct color variations: golden with black spots, or solid gold without spots. Having black spots (B) is a dominant condition over the spotless (b) condition 8 b 8 88 eb (a) What color will the offspring (F1) be of a homozygous dominant spotted frog that mates with a spotless frog? 218 black s Pols (b) Two of the offspring (F1) from the above cross mate. What are the genotypes and phenotypes of their offspring (F2)? (o) What are the possible phenotypes of a cross between one of the F1 frogs and a spotless frog? b gb bb b Bb bb 2:2 Codd scientist has come across a male spotted frog but she knows nothing about its parents. How could she experimentally determine its genotype? That is, if she breeds it with a choosing, what should the genotype of that female be in order to unequivocally (and ms her (d) A female of f that female be in order to unequivocally (and most efficiently) identify the genotype of the male?

Explanation / Answer

7. Answers are correctly mentioned for part a, b, c

d) As we spotting is the dominant trait, then the expected genotype of the male spotted frog will be either BB or Bb. to exactly determine the genotype we have to breeds him with bb genotype spotless female.and if we get 100% offsprings spotted then male genotype will be BB

b

b

B

Bb

Bb

B

Bb

Bb

and if phenotype ration is 2:2 , then the male genotype will be Bb.

b

b

B

Bb

Bb

b

bb

bb

b

b

B

Bb

Bb

B

Bb

Bb

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