HEREDITY
MONOHYBRID CROSS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In a particular kind of mouse grey fur (G) is dominant to brown fur (g ). In order to determine the potential offspring for a cross between a heterozygous mouse and a brown mouse list the gametes from the grey mouse and the gametes from the brown mouse . Check all that apply
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Grey mouse produces gametes that have G allele
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Grey mouse produces gametes that have g allele
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Brown mouse produces gametes that have G allele
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Brown mouse produces gametes that have g allele
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Grey mouse produces only the G allele gametes
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Explanation:
Detailed explanation-1: -Because the genotypes Aa and AA both result in the grey fur phenotype, there is a 75% probability that the offspring will have grey fur. Because the genotype aa results in the white fur phenotype, there is a 25% probability that the offspring will have white fur.
Detailed explanation-2: -Brown mice have the genotype BB or Bb.
Detailed explanation-3: -Answer and Explanation: The pea plant is heterozygous for both seed shape and color, therefore, its genotype is SsYy. The possible gametes it can produce are SY, Sy, sY, and ss and each has an equal chance (25%) of being given by the pea plant to its offspring.
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