How do you do Part B AND C? Parchman BIOL300 SP17 Chapter 4 Problem 4.1 previous

Question

How do you do Part B AND C?

Parchman BIOL300 SP17 Chapter 4 Problem 4.1 previous I 20 of 29 l next Problem 4.17 The coat color in mink is controlled by two codominant alleles at a single locus. Red coat color is produced by the genotype RiR1. silver coat by the genotype R1 R2. and platinum color by R2 R2. White spotting of the coat is a recessive trait found with the genotype 88. Solid coat color is found with the S- genotype. Part A What are the expected progeny phenotypes for the cross 88R1 2 x S8R2R2 Check all that apply. potted platinum potted silver spotted red solid platinum solid silver solid red Submit My Answers Give Up Correct Part B What is the expected phenotype distribution for the cross ssR1 R2 x SsR2R2? Express your answer as four numbers separated by colons. spotted platinum spotted silver:solid platinum solid silver Submit My Answers Give Up Part C If the cross SsRiR2 x 88R1 R1 is made, what are the progeny phenotypes? Check all that apply. O potted platinum

Explanation / Answer

Answer:

Part A).

ssR1R2 X SsR2R2

SR2

sR2

sR1

SsR1R2 (solid silver)

ssR1R2 (spotted silver)

sR2

SsR2R2 (solid platinum)

ssR2R2 (spotted platinum)

Part B).

ssR1R2 X SsR2R2

spotted silver : solid silver : spotted platinum : solid platinum

Part C).

SsR1R2 X ss R1R1

sR1

SR1

SsR1R1 (solid red)

SR2

SsR1R2 (solid silver)

sR1

ssR1R1 (spotted red)

sR2

ssR1R2 (spotted silver)

SR2

sR2

sR1

SsR1R2 (solid silver)

ssR1R2 (spotted silver)

sR2

SsR2R2 (solid platinum)

ssR2R2 (spotted platinum)

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