Login/Sign Up
Home » In question 44, what are the combinations of character in the F2 progeny? What are their ratios?
In question 44, what are the combinations of character in the F2 progeny? What are their ratios?
CBSE | Class 10 | Heredity and Evolution | NCERT Exemplar | Science
In question 44, what are the combinations of character in the F2 progeny? What are their ratios?

Solution: In the F2 progeny, the characters are RrYy x RrYy

So, the cross will be-

RYRyrYry
RYRRYY Round and yellowRRYy Round and yellowRrYY Round and yellowRrYy Round and yellow
RyRRYy Round and yellowRRyy Round and greenRrYy Round and yellowRryy Round and green
rYRrYY Round and yellowRrYy Round and yellowrrYY Wrinkled and yellowrrYy Wrinkled and yellow
ryRrYy Round and yellowRryy Round and greenrrYy Wrinkled and yellowrryy Wrinkled and green

So, the phenotypic ratio is-

Round yellow — 9

(ii) Round green — 3

(iii) Wrinkled yellow — 3

(iv) Wrinkled green — 1

9 : 3 : 3: 1

i

More Material