If a pea plant (Rryy) is crossed with another pea plant
(rryy), then the types of gametes produced in Fy
generation would be
Answers
Answer:
If a pea plant (Rryy) is crossed with another pea plant(rryy), then the types of gametes produced in F1 generation would be
➡ RrYy
hope it helps you
Answer:
The types of gametes produced in the generation if a pea plant with Rryy genotype is crossed with a rryy genotype pea plant are:
- Ry
- ry
Explanation:
The above question indicates that the type of cross we are analysing here is a dihybrid cross.
What is a dihybrid cross?
A typical cross that helps us to understand the inheritance of two pairs of characters at a time is known as a dihybrid cross.
The dihybrid cross was performed and studied by Mendel, and by the results, he established the law of independent assortment.
Law of Independent Assortment:
The law states that "when two pairs of traits are combined in a hybrid, segregation of one pair of the traits is independent of the other pair of the traits".
Now, let us understand the above question.
In the question, one of the pea plants has a genotype of Rryy. It is visible to us that the plant is heterozygous for the character associated with the alleles R and r.
Thus, during gamete formation, according to the law of independent assortment, 50% of the gametes from this pea plant will get the R allele and 50% will get the r allele.
The plant is homozygous for the character associated with the y alleles, so all the gametes will have the y allele.
On the other hand, the other pea plant having genotype rryy is homozygous for both the characters and so, it will produce only one gamete during gametogenesis, i.e., ry.
Thus, now it is clear that the in case of dihybrid crosses, segregation of one pair of characters will occur independently of the other pair. During gametogenesis, the gametes will carry all possible combinations of the factors in equal percentage/frequency.
In this case, two types of gametes are possible:
- Ry
- ry
#SPJ3