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Question

Question 1
If you need help, please watch this video

An allele is a form of a gene. In a dihybrid cross HhSs x hhss, how many alleles does a kitten inherit from the mother?

(1 point)
Responses

1
1

2
2

3
3

4
4
Question 2
In pea plants, yellow peas (coded for by a dominant allele Y) are dominant to green peas (requiring two recessive alleles y). Round peas (coded for by a dominant allele R) are dominant to wrinkly peas (requiring two recessive r alleles).

What is the phenotype of a pea with the the genotype YYRr?

(1 point)
Responses

Green, Round
Green, Round

Green, Wrinkled
Green, Wrinkled

Yellow, Wrinkled
Yellow, Wrinkled

Yellow, Round
Yellow, Round
Question 3
In pea plants, yellow peas (coded for by a dominant allele Y) are dominant to green peas (requiring two recessive alleles y). Round peas (coded for by a dominant allele R) are dominant to wrinkly peas (requiring two recessive r alleles).

What is the genotype of a pea with the the phenotype green and round?

(1 point)
Responses

YyRr
YyRr

yyrr
yyrr

YYRR
YYRR

yyRr
yyRr
Question 4
Review the dihybrid cross below

what is the correct phenotypic ratio?

(1 point)
Responses

16 Tall 16 Green
16 Tall 16 Green

16 short 16 white
16 short 16 white
Question 5



(1 point)
Responses

4:16
4:16

16: 16
16: 16

8:16
8:16

1:16
1:16
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page 13 of 13

Answer 1

Here are the answers to your questions:

Question 1: In a dihybrid cross HhSs x hhss, how many alleles does a kitten inherit from the mother?
Answer: 2 (The mother can contribute one allele for each of the two traits.)

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Question 2: What is the phenotype of a pea with the genotype YYRr?
Answer: Yellow, Round (Because YY indicates yellow peas and Rr indicates round peas.)

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Question 3: What is the genotype of a pea with the phenotype green and round?
Answer: yyRr (Green peas must have the genotype "yy" and round peas can be either "RR" or "Rr", so a genotype like "yyRr" fits.)

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Question 4: What is the correct phenotypic ratio?
(Note: Without the specific dihybrid cross details, a standard dihybrid cross of AaBb x AaBb typically yields a phenotype ratio of 9:3:3:1 — could you provide more specifics about the traits?)
Answer: The expected phenotypic ratio for a typical dihybrid cross is 9:3:3:1, but the correct answer will depend on the traits you are referring to.

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Question 5:
(Note: Without the additional context for the final question regarding the phenotypic ratio, it's hard to provide a specific answer.)
If you are looking for a specific ratio based on question 4, the answers could vary. The common ratios to choose from in the context of dihybrid cross are commonly expressed as:

Answer: 9:3:3:1

If you can provide additional context for Questions 4 and 5, I can assist further!