1. Consider the following cross concerning 4 different gene loci: AaBbCcDd (x) AabbCcdd a. From this cross, what is the probability of getting a progeny (offspring) with genotype AABbccdd? b. From this cross, what is the probability of getting a progeny (offspring) with genotype AabbCcDd? c. From this cross, what is the probability of getting a male progeny (offspring) with genotype aaBbCcdd?

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Extra Question Chapter 4
1. Consider the following cross concerning 4 different gene loci:
AaBbCcDd (x) AabbCcdd
From this cross, what is the probability of getting a progeny (offspring) with genotype
AABbccdd?
b. From this cross, what is the probability of getting a progeny (offspring) with genotype
AabbCcDd?
c. From this cross, what is the probability of getting a male progeny (offspring) with
genotype aaBbCcdd?
2. Your neighbor has twelve children.
One is blue eye color and short.
Two are brown eye color and short.
Two are blue eye color and tall.
Seven look just like the parents; brown eye color with tall.
What can you discover about the genetics of eye color and height of the children?
a.
How many traits are you dealing with?
Each trait has
phenotypes:
Specify the phenotypes.
b.
What is the probability of the height of the children? What is the probability of the eye
color of the children? (Refer to monohybrid punnett square slides 17-19)
c. What are recessive traits based on the calculated probability?
d.
What is the wild type?
The phenotype ratio observed in children (7:2:2:1) is consistent with what we would expect for a
typical F2 generation in a dihybrid cross (9:3:3:1), given that you don't have enough children for
it to be 9:3:3:1.
e. What would be the parent's genotype of height and eye color? Remember that we are
dealing with two traits.
f.
Under the independent assortment principle, calculate the probability of genotype and
phenotype of children with two traits. (Refer to dihybrid punnett square slides 34-35).
Transcribed Image Text:Extra Question Chapter 4 1. Consider the following cross concerning 4 different gene loci: AaBbCcDd (x) AabbCcdd From this cross, what is the probability of getting a progeny (offspring) with genotype AABbccdd? b. From this cross, what is the probability of getting a progeny (offspring) with genotype AabbCcDd? c. From this cross, what is the probability of getting a male progeny (offspring) with genotype aaBbCcdd? 2. Your neighbor has twelve children. One is blue eye color and short. Two are brown eye color and short. Two are blue eye color and tall. Seven look just like the parents; brown eye color with tall. What can you discover about the genetics of eye color and height of the children? a. How many traits are you dealing with? Each trait has phenotypes: Specify the phenotypes. b. What is the probability of the height of the children? What is the probability of the eye color of the children? (Refer to monohybrid punnett square slides 17-19) c. What are recessive traits based on the calculated probability? d. What is the wild type? The phenotype ratio observed in children (7:2:2:1) is consistent with what we would expect for a typical F2 generation in a dihybrid cross (9:3:3:1), given that you don't have enough children for it to be 9:3:3:1. e. What would be the parent's genotype of height and eye color? Remember that we are dealing with two traits. f. Under the independent assortment principle, calculate the probability of genotype and phenotype of children with two traits. (Refer to dihybrid punnett square slides 34-35).
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