Biology, 15.04.2021 23:10 kaffolter25

In mammoths, assume that spotted skin (S) is dominant over non-spotted skin (s) and that wooly hair (W) is dominant over non-wooly hair (w). Cross a mating between a heterozygous spotted, non-wooly mammoth with a heterozygous wooly-haired, non-spotted mammoth. Give genotypic and phenotypic ratios of offspring.

Answers: 2

Show answers

Answers

Answer from: zykia1002

Genotypic and Phenotypic ratios → 1:1:1:1

25% of the progeny is expected to be SsWw, exhibiting spotted skin and wooly hair, SsWw25% of the progeny is expected to be Ssww, exhibiting spotted skin and non-wooly hair, Ssww25% of the progeny is expected to be ssWw, exhibiting non- spotted skin and wooly hair, ssWw25% of the progeny is expected to be ssww, exhibiting non-spotted skin and non-wooly hair, ssww

Explanation:

Available data:

spotted skin (S) is dominant over non-spotted skin (s)wooly hair (W) is dominant over non-wooly hair (w)Cross: heterozygous spotted, non-wooly mammoth with a heterozygous wooly-haired, non-spotted mammoth.

Parentals) Ssww x ssWw

Gametes) Sw, Sw, sw, sw

sW, sW, sw, sw

Punnett square) Sw Sw sw sw

sW SsWw SsWw ssWw ssWw

sw Ssww Ssww ssww ssww

F1) 4/16 = 1/4 = 25% of the progeny is expected to be SsWw, exhibiting spotted skin and wooly hair

4/16 = 1/4 = 25% of the progeny is expected to be Ssww, exhibiting spotted skin and non-wooly hair

4/16 = 1/4 = 25% of the progeny is expected to be ssWw, exhibiting non- spotted skin and wooly hair

4/16 = 1/4 = 25% of the progeny is expected to be ssww, exhibiting non-spotted skin and non-wooly hair.

Genotypic and Phenotypic ratios → 1:1:1:1

Answer from: Quest

The correct answer is a. we know this because n (hap) + n (hap) = 2n (dip).

Answer from: Quest

due to the fact that it skipped a generation we can tell it is definitely not a dominant trait, therefore it must be recessive. i think this is right let me know!

explanation:

Another question on Biology

Biology, 21.06.2019 20:00

Which type of neuroglia is found outside of the brain?

Answers: 3

Answer

Biology, 21.06.2019 22:10

Amouse that is homozygous for the dominant trait has the genotype . it has . a mouse that is homozygous for the recessive trait has the genotype . it has . image of fur color of mice

Answers: 1

Answer

Biology, 22.06.2019 01:00

Coral reefs support more species per unit area than any other marine environment on earth. what is one way coral reefs are important to the health of the biosphere

Answers: 1

Answer

Biology, 22.06.2019 02:10

How does a gymnosperm prevent itself from pollinating the same tree

Answers: 1

Answer

You know the right answer?

In mammoths, assume that spotted skin (S) is dominant over non-spotted skin (s) and that wooly hair...

Questions