Question
This question has four parts.
A female cat (a queen or a molly) and a male cat (a tom or tomcat) produces offspring. We want want to determine the likelihood that the kittens will inherit a genetic condition that runs in both of their families. One gene with two alleles is responsible for the condition. The dominant allele (D) produces the normal phenotype, and the recessive allele (d) produces the genetic condition. Both the male and female cats have the normal phenotype.
A. Using the allele symbols D and d, identify all possible genotypes of the male and all possible genotypes of the female cat for this genetic condition.
(2 points)
0 / 10000 Word Limit
Question 2
Using the allele symbols D and d, complete the Punnett square on the table to show how the male and female cat can have a biological kitten with this genetic condition. (1 point)
Drop target 1
Drop target 2
Drop target 3
Drop target 4
Drop target 5
Drop target 6
Drop target 7
Drop target 8
Question 3
Identify the percentage of offspring that are expected to have the genetic condition based on this Punnett square.(1 point)
0 / 10000 Word Limit
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A female cat (a queen or a molly) and a male cat (a tom or tomcat) produces offspring. We want want to determine the likelihood that the kittens will inherit a genetic condition that runs in both of their families. One gene with two alleles is responsible for the condition. The dominant allele (D) produces the normal phenotype, and the recessive allele (d) produces the genetic condition. Both the male and female cats have the normal phenotype.
A. Using the allele symbols D and d, identify all possible genotypes of the male and all possible genotypes of the female cat for this genetic condition.
(2 points)
0 / 10000 Word Limit
Question 2
Using the allele symbols D and d, complete the Punnett square on the table to show how the male and female cat can have a biological kitten with this genetic condition. (1 point)
Drop target 1
Drop target 2
Drop target 3
Drop target 4
Drop target 5
Drop target 6
Drop target 7
Drop target 8
Question 3
Identify the percentage of offspring that are expected to have the genetic condition based on this Punnett square.(1 point)
0 / 10000 Word Limit
Skip to navigation
Answers
GPT-4o mini
Let's break down the four parts of your question step by step.
### Part A: Possible Genotypes of the Cats
Both the female cat (queen) and the male cat (tom) have the normal phenotype, which means they can either be homozygous dominant (DD) or heterozygous (Dd). Therefore, the possible genotypes are:
- **Male Cat (Tom)**:
- DD (homozygous dominant)
- Dd (heterozygous)
- **Female Cat (Queen)**:
- DD (homozygous dominant)
- Dd (heterozygous)
### Part B: Complete the Punnett Square
Assuming the male and female cats are both heterozygous (Dd) since we want to see if they can produce kittens with the genetic condition, here's how the Punnett square would look:
| | **D** | **d** |
|---------|-----------|-----------|
| **D** | DD | Dd |
| **d** | Dd | dd |
Here’s how to fill it in:
- The first box (top left) corresponds to DD (normal).
- The second box (top right) corresponds to Dd (normal).
- The third box (bottom left) corresponds to Dd (normal).
- The fourth box (bottom right) corresponds to dd (affected by the genetic condition).
### Part C: Percentage of Offspring with the Genetic Condition
From the Punnett square, we have:
- 1 DD (normal): 25%
- 2 Dd (normal): 50%
- 1 dd (affected): 25%
Thus, the percentage of offspring expected to have the genetic condition (dd) based on this Punnett square is **25%**.
### Summary of Answers
- **A**: Possible genotypes are:
- Male: DD or Dd
- Female: DD or Dd
- **B**: Complete Punnett square is filled out above.
- **C**: The percentage of offspring expected to have the genetic condition is **25%**.
### Part A: Possible Genotypes of the Cats
Both the female cat (queen) and the male cat (tom) have the normal phenotype, which means they can either be homozygous dominant (DD) or heterozygous (Dd). Therefore, the possible genotypes are:
- **Male Cat (Tom)**:
- DD (homozygous dominant)
- Dd (heterozygous)
- **Female Cat (Queen)**:
- DD (homozygous dominant)
- Dd (heterozygous)
### Part B: Complete the Punnett Square
Assuming the male and female cats are both heterozygous (Dd) since we want to see if they can produce kittens with the genetic condition, here's how the Punnett square would look:
| | **D** | **d** |
|---------|-----------|-----------|
| **D** | DD | Dd |
| **d** | Dd | dd |
Here’s how to fill it in:
- The first box (top left) corresponds to DD (normal).
- The second box (top right) corresponds to Dd (normal).
- The third box (bottom left) corresponds to Dd (normal).
- The fourth box (bottom right) corresponds to dd (affected by the genetic condition).
### Part C: Percentage of Offspring with the Genetic Condition
From the Punnett square, we have:
- 1 DD (normal): 25%
- 2 Dd (normal): 50%
- 1 dd (affected): 25%
Thus, the percentage of offspring expected to have the genetic condition (dd) based on this Punnett square is **25%**.
### Summary of Answers
- **A**: Possible genotypes are:
- Male: DD or Dd
- Female: DD or Dd
- **B**: Complete Punnett square is filled out above.
- **C**: The percentage of offspring expected to have the genetic condition is **25%**.