Question

1.) In poison dart frogs, the spot color is inherited by incomplete dominance. SS individuals have blue spots, ss individuals have yellow spots, and Ss individuals have green spots. You cross two frogs with green spots. How many of their offspring will have blue spots? (percent or fraction) 2.) Wolves are sometimes observed to have black coats and blue eyes. Assume further that normal coat color (N) is dominant to black (n) and brown eyes (B) are dominant to blue (b). Suppose the alpha male of this pack is homozygous for normal coat color and blue eyes, and the alpha female of this pack is homozygous for black coat color and homozygous for brown eyes. What will the genotype of their offspring be? A.) NnBb B.) NNBB C.) nnBB D.) NNbb

          1.) In poison dart frogs, the spot color is inherited by incomplete dominance. SS individuals have blue spots, ss individuals have yellow spots, and Ss individuals have green spots.  
You cross two frogs with green spots. How many of their offspring will have blue spots? (percent or fraction)

2.) Wolves are sometimes observed to have black coats and blue eyes. Assume further that normal coat color (N) is dominant to black (n) and brown eyes (B) are dominant to blue (b). Suppose the alpha male of this pack is homozygous for normal coat color and blue eyes, and the alpha female of this pack is homozygous for black coat color and homozygous for brown eyes. What will the genotype of their offspring be?
A.) NnBb
B.) NNBB
C.) nnBB
D.) NNbb

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Added by Lauren F.

Biology for AP Courses

Julianne Zedalis, John Eggebrecht

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Solved by Expert Suman K

05/31/2022

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Since green spots are a result of incomplete dominance, the genotypes of the parents must be Ss. Show more…

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1.) In poison dart frogs, the spot color is inherited by incomplete dominance. SS individuals have blue spots, ss individuals have yellow spots, and Ss individuals have green spots. You cross two frogs with green spots. How many of their offspring will have blue spots? (percent or fraction) 2.) Wolves are sometimes observed to have black coats and blue eyes. Assume further that normal coat color (N) is dominant to black (n) and brown eyes (B) are dominant to blue (b). Suppose the alpha male of this pack is homozygous for normal coat color and blue eyes, and the alpha female of this pack is homozygous for black coat color and homozygous for brown eyes. What will the genotype of their offspring be? A.) NnBb B.) NNBB C.) nnBB D.) NNbb

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Transcript

00:01 Will be a certain given card.

00:03 First, let me ask for us before giving information that what color in poison dark frogs that are inherited as incomplete dominance.

00:24 And then it is given to us some genotype regarding the characters such as blue spots.

00:37 They will be capital s capital s and yellow spots.

00:47 They will be small as small s and green spots individual.

00:58 They will have capital s small s as the genotype.

01:03 And then we have been given that there was a cross which was done between green spot.

01:12 That is two green spot parents were crossed and we have to check.

01:16 Tell that how many of their offspring will have blue spot.

01:26 So we have been given the genotype for the green spots, that is capital s and smallness.

01:36 So we will write here that parent 1 is capital as small as having that genotype, whereas parent 2 will also have the genotype as capital as small as.

01:48 Now when a cross is done between these two capital s and smallness, then we will have the respective again or gemics as capital s, smallest, again capital is and smallest.

02:04 Now when we make a cross, then the possible genotype of the offspring are first capital is capital s, then capital s small as again capital s and the last one will be small as smallest.

02:23 So these are the possible offspring genotype...

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