A purple flower with an unknown genotype is crossed with a white flower. Determine the genotype of the purple flower if purple(P) is dominant and white(p) is recessive

Respuesta :

There are two different possibilities:
 
 P   p - dominant purple   or     P P  x      pp

Pp - Pp - pp - pp - 50% dominant purple  - 50% recessive white
Pp - Pp - Pp - Pp - 100% dominant purple

The genotype of the purple flower which is crossed with a white flower is either PP or Pp.

What is genotype?

  • "The genetic makeup of an organism is called genotypes."
  • The alternative forms of genotype is known as allele.
  • The allele which is expressed in the generation is called dominant allele whereas the allele that masks its expression and only expressed when both of of its copies is present in the generation is known as recessive allele.

It is given that the color of purple flower is dominant (P) and white color flower is recessive (p). White color flower will have pp genotype.

So, the flower will be of purple color when the genotype will be either PP or Pp.

When PP is crossed with pp:

PP x pp ⇒ Pp, Pp, Pp and Pp (all the offspring will be of purple color).

When Pp is crossed with pp:

Pp x pp ⇒ Pp, Pp, pp and pp (offspring with two purple flower and two white flower).

Hence, the genotype of purple flower is either PP or Pp.

To know more about genotypes here

https://brainly.com/question/14553311

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