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?

Question

(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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Answer 1

Let's go through each question one by one:

Question 1

In the dihybrid cross HhSs x hhss, we need to determine how many alleles a kitten inherits from the mother.

• The mother in this case is "HhSs," which means she has two pairs of alleles:
  • "H" or "h" from the first pair
  • "S" or "s" from the second pair

The kitten inherits 2 alleles from the mother (one from each gene).
Response: 2

Question 2

For the genotype YYRr:

• "YY" indicates the presence of two dominant alleles for yellow peas, making the color yellow.
• "Rr" indicates that there is at least one dominant allele for round peas.

Since yellow is dominant over green, and round is dominant over wrinkled:

The phenotype of a pea with the genotype YYRr is Yellow, Round. Response: Yellow, Round

Question 3

For a pea plant to have the phenotype green and round, we need to analyze:

• Green requires the genotype "yy" (two recessive alleles).
• Round can be either "RR" or "Rr" (at least one dominant allele).

Therefore, the genotype that produces a green (yy) and round (it can be either R or r) phenotype is:

The genotype can only be yyRr. Response: yyRr

Question 4

The phenotypic ratio is derived from a dihybrid cross (typically a 9:3:3:1 ratio for dominant traits).

Since the responses do not provide specific details on which traits are being analyzed:

A general phenotypic ratio for a typical dihybrid cross is 9:3:3:1, which is not represented in the provided choices.

However, a correct ratio could be over 16 total offspring if you identify certain combinations of phenotypes based on the traits. From the responses, it seems like these ratios might not accurately reflect that.

Without the full context or more detail, I cannot provide a clear answer to this specific question due to lack of choices or clarity.

Question 5

Again, the answer will depend on the context provided for the question, which is missing.

Given standard ratios without specification:

• A 4:16 ratio could imply a uniqueness (such as homozygous vs heterozygous), but without context, it's unclear. Typically, we won't have a 16:16 ratio without specific setup.

The correct answer cannot be determined without more context.

I hope this helps with all your questions! If you need more specifics or clarification, feel free to ask!