Two genes, each with a dominant and recessive allele, determine comb phenotypes as follows: Comb Shape Description Genotype Single Comb homozygous recessive for both r and p rrpp Walnut comb both dominant alleles are present; R and P alleles are present R_P_ Pea comb the dominant allele P is present and the dominant allele R is absent rrP_ Rose comb the dominant allele R is present and the dominant allele P is absent R_pp If the P1 generation is a rose comb (RRpp) crossed with a pea comb (rrPP), which of the following represents the correct genotype and phenotype of the F1 offspring? Select one: a. Genotype Phenotype RRPP Single comb b. Genotype Phenotype RrPp walnut comb c. Genotype Phenotype RrPp pea comb d. Genotype Phenotype RRPP walnut comb
Two genes, each with a dominant and recessive allele, determine comb phenotypes as follows: Comb Shape Description Genotype Single Comb homozygous recessive for both r and p rrpp Walnut comb both dominant alleles are present; R and P alleles are present R_P_ Pea comb the dominant allele P is present and the dominant allele R is absent rrP_ Rose comb the dominant allele R is present and the dominant allele P is absent R_pp If the P1 generation is a rose comb (RRpp) crossed with a pea comb (rrPP), which of the following represents the correct genotype and phenotype of the F1 offspring? Select one: a. Genotype Phenotype RRPP Single comb b. Genotype Phenotype RrPp walnut comb c. Genotype Phenotype RrPp pea comb d. Genotype Phenotype RRPP walnut comb
Chapter13: Patterns In Inherited Traits
Section: Chapter Questions
Problem 6GP: In sweet pea plant, an allele for purple flowers (P) is dominant when paired with a recessive allele...
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Question
The comb shape of chickens is an example of an interesting inheritance pattern.
Two genes, each with a dominant and recessive allele, determine comb
Comb Shape | Description | Genotype |
---|---|---|
Single Comb | homozygous recessive for both r and p | rrpp |
Walnut comb | both dominant alleles are present; R and P alleles are present | R_P_ |
Pea comb | the dominant allele P is present and the dominant allele R is absent | rrP_ |
Rose comb | the dominant allele R is present and the dominant allele P is absent | R_pp |
If the P1 generation is a rose comb (RRpp) crossed with a pea comb (rrPP), which of the following represents the correct genotype and phenotype of the F1 offspring?
Select one:
a.
Genotype | Phenotype |
---|---|
RRPP | Single comb |
b.
Genotype | Phenotype |
---|---|
RrPp | walnut comb |
c.
Genotype | Phenotype |
---|---|
RrPp | pea comb |
d.
Genotype | Phenotype |
---|---|
RRPP | walnut comb |
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