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the diagram shown represents a dihybrid cross between two pea plants heterozygous for both seed color and seed shape.

what is the phenotypic ratio of the offspring?
A. 1:1:1:2:2:2:2:4
B. 1:3:3:9
C. 1:4
D. 4:12


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the diagram shown represents a dihybrid cross between two pea plants heterozygous for both seed color and seed shapewhat is the phenotypic ratio of the offsprin class=

Respuesta :

marlynn2002

Answer:

1:3:3:9

Explanation:

There are 12 yellow seeds, from which 9 are smooth and 3 are rough.

There are 4 green seeds, from which 3 are smooth and only 1 is rough.

Both the appearance and color of the seeds is something you need to look out for when dealing with phenotypes.

The phenotypic ratio of this dihybrid cross will be 1:3:3:9.

What is phenotype?

  • The term phenotype simply refers to a trait that may be observed.
  • Pheno means observe  and is derived from the same root as "phenomenon."
  • As a result, it's a sort of organism that can be seen, and it may relate to anything from a common characteristic like height or hair color to the presence or absence of disease.

What is dihybrid cross?

  • A mating experiment between two animals that are identically hybrid for two features is referred to as a dihybrid cross.
  • A heterozygous organism is one that possesses two distinct alleles at the same genetic location, or locus.
  • The cross between a homozygous pea plant with round yellow seeds and wrinkled green seeds is an example of a dihybrid cross.
  • RRYY alleles are found in round yellow seeds, while rryy alleles are found in wrinkled green seeds.

Hence the correct option is B.

To know more about Dihybrid cross here

https://brainly.com/question/1755932

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