In a cross between two pea plants, one with round seeds (R) and one with wrinkle

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Question: In a cross between two pea plants, one with round seeds (R) and one with wrinkled seeds (r), what is the phenotype of the F1 generation if round is dominant?

Options:

Round
Wrinkled
Both
Neither

Correct Answer: Round

Solution:

The phenotype of the F1 generation will be round seeds since round (R) is dominant over wrinkled (r).

In a cross between two pea plants, one with round seeds (R) and one with wrinkle

Practice Questions

In a cross between two pea plants, one with round seeds (R) and one with wrinkled seeds (r), what is the phenotype of the F1 generation if round is dominant?

Round
Wrinkled
Both
Neither

Questions & Step-by-Step Solutions

In a cross between two pea plants, one with round seeds (R) and one with wrinkled seeds (r), what is the phenotype of the F1 generation if round is dominant?

Correct Answer: Round seeds

Step 1: Identify the traits of the parent pea plants. One plant has round seeds (R) and the other has wrinkled seeds (r).
Step 2: Understand that round seeds (R) are dominant over wrinkled seeds (r). This means that if a plant has at least one R, it will show the round seed trait.
Step 3: When these two plants are crossed, the offspring (F1 generation) will inherit one allele from each parent.
Step 4: The F1 generation will have the genotype Rr (one round seed allele and one wrinkled seed allele).
Step 5: Since round (R) is dominant, the phenotype of the F1 generation will be round seeds.

Dominance in Genetics – Understanding how dominant and recessive alleles affect phenotypes in offspring.
Punnett Squares – Using Punnett squares to predict the genotypes and phenotypes of offspring in genetic crosses.

In a cross between two pea plants, one with round seeds (R) and one with wrinkle

What’s inside this PDF?

In a cross between two pea plants, one with round seeds (R) and one with wrinkle

Practice Questions

Questions & Step-by-Step Solutions

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