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defon
1 year ago
9

In pea plants, p is purple flowers, p is white flowers, t is tall plants, and t is short plants. cross two fully heterozygous pl

ants (pptt x pptt). what is the phenotypic ratio of the f1 generation?
Biology
1 answer:
BARSIC [14]1 year ago
5 0

The phenotypic ratio of heterozygous plants (pptt x pptt) in the f1 generation is 1:1:1:1.

<h3>Briefing :</h3>

P and T are dominant alleles p and t are recessive alleles

Parents: PpTt, pptt

Possible gametes are  PT, Pt, pT, pt

where

pt (all the small) i.e white small

pT white tall

PT (all the big) i.e purple tall

Pt purple small

<h3>What is alleles?</h3>

Leading textbooks on genetics and evolution define an allele as a variant of the same sequence of nucleotides at the same location on a long DNA molecule. "The chromosomal or genomic location of a gene or any other genetic element is called a locus, and alternative DNA sequences at a locus are called alleles.

Alleles are the various variations of a gene. Alleles can be recessive or dominant. Even if a person only possesses one copy of a dominant allele, it still has an impact (also known as being heterozygous).

To know more about gene visit :

brainly.com/question/8832859

#SPJ4

I understand the question that you are looking for :

In garden peas, purple flowers (P) are dominant to white (p) flowers, and tall plants (T) are dominant to short plants (t). If a purple tall plant (PpTt) is crossed with a white short plant (pptt), what is the resulting phenotypic ratio?

A. 1:1:1:1 purple tall to purple short to white tall to white short,

B. 3:2 purple tall to purple short,

C. 9:3:3:1 purple tall to purple short to white tall to white short,

D. all purple tall.

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