Which genotypic class has purple flowers?

B is dominant to b, so offspring with either the BB or Bb genotype will have the purple-flower phenotype. Only offspring with the bb genotype will have the white-flower phenotype.

What is the genotype of a purple flower?

In pea plants, purebred purple flowers have a genotype with two purple alleles, which produces a phenotype of purple petals. Purebred white flowers have a genotype of two white alleles, which displays the white phenotype. But what happens when you cross purebred purple flowers with purebred white flowers?

What are the genotypes possible for tall purple flower?

The genotype of plants,is TT tt PP pp. The genotype of F1 is TtPp and phenotype is tall plants and purple flowers. The results obtained by self-pollinating the F1 progeny to get F2 progeny is 9:3:3:1 .

What is the plant’s genotype for flower color?

The offspring plant must have genotype Rr for flower color (pink flowers) and Ww for seed shape (wrinkled). In fact we know more: we know the R and W came from one parent, so are on the same chromosome, and also the r and w on the other chromosome, from the other parent.

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How could you determine the genotype of a purple flowering plant?

The white flower must be homozygous for the recessive allele, but the genotype of the purple flower is unknown. It could be either PP or Pp. A testcross will determine the organism’s genotype. The unknown genotype can be determined by observing the phenotypes of the resulting offspring.

What is the genotype for the purple flowers in the F1 generation?

The F1 generation is 100% Pp. The F2 generation is 25% PP (homozygous dominant, purple flowers), 50% Pp (heterozygous, purple flowers), and 25% pp (homozygous recessive, white flowers). This is how the white characteristic reappears in the second generation. The phenotype is 3:1, purple to white.

Is PP purple flowers?

The combinations PP, Pp, and pP have the same phenotype-purple flowers. This is because each contains at least one dominant allele (P). Only one combination, pp, produces plants that have white flowers.

Which is dominant purple or white flowers?


Trait Dominant Expression Recessive Expression
Color of seed albumen (Y) Yellow Green
Color of flower (P) Purple White
Form of ripe pods (I) Inflated Constricted
Color of unripe pods (G) Green Yellow

Is PP genotype or phenotype?

There are three available genotypes, PP (homozygous dominant ), Pp (heterozygous), and pp (homozygous recessive). All three have different genotypes but the first two have the same phenotype (purple) as distinct from the third (white).

Can two plants with purple flowers produce offspring with white flowers?

Can two plants with purple flowers produce offspring with white flowers? Yes, if both parents are heterozygous for the trait.

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Is HH a genotype?

A genotype describes an organism in terms of its combination of genes. e.g. HH, Hh and hh are all shorthand descriptions for genotypes. An organism’s phenotype is a description based on its observable characteristics, i.e. what an organism looks like, as a result of its genes, interacting with its environment.

What is the genotype of pink flower?

The genotype for the pink flower is Rr and the genotype for the white flower is rr. This would lead to a 50% chance of the offspring having a phenotype of pink.

What is the genotype of red flower?

Plants with the genotype RR or Rr have red flowers.

What is the phenotype of a purple flower pea plant quizlet?

If a recessive trait (like white flowers) is expressed in an organism’s phenotype, what can you determine about its genotype? If a pea plant has the dominant phenotype of purple flowers, what do you know about its genotype? In pea plants, purple flowers (P) are dominant to white flowers (p).

What is genotype example?

Genotype examples

A gene encodes eye color. … If the child inherits two different alleles (heterozygous) then they will have brown eyes. For the child to have blue eyes, they must be homozygous for the blue eye allele.

What is the genotype of an organism quizlet?

Genotype: actual set of alleles or genetic makeup of an organism. Phenotype: The EXPRESSED/OBSERVABLE traits of an organism that are determined by its genetic makeup.