Genetics practice worksheet with Punnett squares and questions on rabbit coat color inheritance.

To solve the problems presented in the image, we need to analyze each genetic cross step by step using Punnett squares. Let's go through each question systematically.

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1. What percentage of the offspring will have palomino coats?

Genotypes: DD × Dd

- Dominant allele (D): Palomino coat
- Recessive allele (d): Cream coat

#### Punnett Square:
| | D | d |
|---|----|----|
| D | DD | Dd |
| D | DD | Dd |

- All offspring (DD and Dd) will express the dominant allele D, resulting in a palomino coat.

#### Answer:
100% of the offspring will have palomino coats.

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2. What percentage of the offspring will be heterozygous?

Genotypes: DD × Dd

From the Punnett square above:
- Heterozygous offspring: Dd
- Homozygous offspring: DD

There are 2 Dd (heterozygous) out of 4 total offspring.

#### Answer:
50% of the offspring will be heterozygous.

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3. What percentage of the offspring will have a homozygous genotype?

Genotypes: dd × Dd

#### Punnett Square:
| | D | d |
|---|----|----|
| d | Dd | dd |
| d | Dd | dd |

- Homozygous offspring: dd
- Heterozygous offspring: Dd

There are 2 dd (homozygous) out of 4 total offspring.

#### Answer:
50% of the offspring will have a homozygous genotype.

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4. What will be the ratio of cream to palomino foals?

Genotypes: dd × Dd

From the Punnett square above:
- Cream (dd): 2
- Palomino (Dd): 2

The ratio is 1:1.

#### Answer:
The ratio of cream to palomino foals is 1:1.

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5. What percentage of the offspring will have dark brown coats?

Genotypes: dd × Dd

- The alleles involved here do not include any information about dark brown coats. Both parents only have alleles for cream (dd) and palomino (Dd). Therefore, no offspring can have dark brown coats.

#### Answer:
0% of the offspring will have dark brown coats.

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6. What percentage of the offspring will have dark brown coats?

Genotypes: Dd × Dd

#### Punnett Square:
| | D | d |
|---|----|----|
| D | DD | Dd |
| d | Dd | dd |

- Dark brown coats are not mentioned in the problem or Punnett square. The alleles involved only produce palomino (D_) and cream (dd).

#### Answer:
0% of the offspring will have dark brown coats.

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7. What percentage of the offspring will have palomino coats?

Genotypes: DD × dd

#### Punnett Square:
| | d | d |
|---|----|----|
| D | Dd | Dd |

- All offspring (Dd) will express the dominant allele D, resulting in a palomino coat.

#### Answer:
100% of the offspring will have palomino coats.

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8. What percentage of the offspring will have homozygous genotypes?

Genotypes: DD × dd

From the Punnett square above:
- All offspring are Dd (heterozygous).

#### Answer:
0% of the offspring will have homozygous genotypes.

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9. What percentage of the offspring will have dark brown coats?

Genotypes: Dd × dd

#### Punnett Square:
| | d | d |
|---|----|----|
| D | Dd | Dd |
| d | dd | dd |

- Dark brown coats are not mentioned in the problem or Punnett square. The alleles involved only produce palomino (Dd) and cream (dd).

#### Answer:
0% of the offspring will have dark brown coats.

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10. What percentage of the offspring will have cream coats?

Genotypes: Dd × dd

From the Punnett square above:
- Cream (dd): 2
- Palomino (Dd): 2

There are 2 dd (cream) out of 4 total offspring.

#### Answer:
50% of the offspring will have cream coats.

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Final Answers:

1. 100%
2. 50%
3. 50%
4. 1:1
5. 0%
6. 0%
7. 100%
8. 0%
9. 0%
10. 50%

Boxed Final Answer:
\[
\boxed{100\%, 50\%, 50\%, 1:1, 0\%, 0\%, 100\%, 0\%, 0\%, 50\%}
\]