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A pea plant with round green (RRyy) pea ...

A pea plant with round green (RRyy) pea seed is crossed another pea plant with wrinkled yellow (rrYY) seeds. What would be the nature of seed in the first generation (`F_(1)` generation)?

A

Round green

B

Wrinkled green

C

Wrinkled yellow

D

Round yellow

Text Solution

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The correct Answer is:
To solve the problem, we need to determine the characteristics of the seeds in the first generation (F1 generation) after crossing two pea plants with different traits. ### Step-by-Step Solution: 1. **Identify the Genotypes of the Parent Plants:** - The first plant has round green seeds, represented as RRyy. Here, "RR" indicates that round (R) is dominant, and "yy" indicates that green (y) is recessive. - The second plant has wrinkled yellow seeds, represented as rryy. Here, "rr" indicates that wrinkled (r) is recessive, and "YY" indicates that yellow (Y) is dominant. 2. **Determine the Gametes Produced by Each Parent:** - The first plant (RRyy) can produce gametes with the following combinations: RY (Round and Yellow). - The second plant (rrYY) can produce gametes with the following combinations: rY (Wrinkled and Yellow). 3. **Cross the Gametes to Determine the F1 Generation:** - When we cross the gametes from both parents, we get the following combinations: - RY (from the first plant) and rY (from the second plant) combine to form RrYy. 4. **Analyze the F1 Generation Genotype:** - The genotype RrYy indicates that the F1 generation will have one dominant allele for round seeds (R) and one dominant allele for yellow seeds (Y). 5. **Determine the Phenotype of the F1 Generation:** - Since both round (R) and yellow (Y) are dominant traits, the phenotype of the F1 generation will express these dominant traits. - Therefore, the seeds in the F1 generation will be round and yellow. ### Final Answer: The nature of the seeds in the F1 generation will be **round and yellow**. ---

To solve the problem, we need to determine the characteristics of the seeds in the first generation (F1 generation) after crossing two pea plants with different traits. ### Step-by-Step Solution: 1. **Identify the Genotypes of the Parent Plants:** - The first plant has round green seeds, represented as RRyy. Here, "RR" indicates that round (R) is dominant, and "yy" indicates that green (y) is recessive. - The second plant has wrinkled yellow seeds, represented as rryy. Here, "rr" indicates that wrinkled (r) is recessive, and "YY" indicates that yellow (Y) is dominant. ...
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