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The number of genotypes produced by game...

The number of genotypes produced by gametes Y and y would be

A

1

B

12

C

3

D

4

Text Solution

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The correct Answer is:
To determine the number of genotypes produced by the gametes Y and y, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Gametes**: The gametes provided are Y (dominant) and y (recessive). 2. **Form Zygotes**: When these gametes combine during fertilization, they can form different zygotes. The possible combinations of gametes are: - Y from one parent and Y from the other parent (YY) - Y from one parent and y from the other parent (Yy) - y from one parent and y from the other parent (yy) 3. **List the Genotypes**: From the combinations above, we can list the resulting genotypes: - YY (homozygous dominant) - Yy (heterozygous) - yy (homozygous recessive) 4. **Count the Unique Genotypes**: We now count the unique genotypes formed: - YY - Yy - yy This gives us a total of 3 unique genotypes. 5. **Conclusion**: Therefore, the number of genotypes produced by the gametes Y and y is 3. ### Final Answer: The number of genotypes produced by gametes Y and y is **3**. ---
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