In a dihybrid cross,instead of a 9:3:3:1 rati | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The $9:3:3:1$ ratio is the classic Mendelian dihybrid phenotypic ratio. When the phenotypic ratio in a dihybrid cross shifts to $1:4:6:4:1$,it ind

Vedclass · Accepted Answer

Polygenic inheritance

Vedclass · Answer

(C) The $9:3:3:1$ ratio is the classic Mendelian dihybrid phenotypic ratio. When the phenotypic ratio in a dihybrid cross shifts to $1:4:6:4:1$,it indicates that the trait is controlled by multiple genes,each having an additive effect on the phenotype. This specific ratio $(1:4:6:4:1)$ is characteristic of polygenic inheritance involving two gene pairs,often observed in traits like human skin color or kernel color in wheat. Therefore,it is an example of polygenic inheritance.

In a dihybrid cross,instead of a $9:3:3:1$ ratio,a $1:4:6:4:1$ ratio is obtained. This is an example of .....

Similar Questions

Choose the possible genotype responsible for lightest skin colour in human beings.

Which of the following traits in humans is controlled by the combined effect of more than one gene?

$A$ polygenic trait is controlled by $3$ genes $A, B$,and $C$. In a cross $AaBbCc \times AaBbCc$,the phenotypic ratio of the offspring is observed as $1:6:x:20:x:6:1$. What is the possible value of $x$?

Explain the effect of cumulative genes on skin color.

What is the pattern of inheritance for a polygenic trait?

Vedclass Test Series

Exam Paper Generator

Online Exam Module