What will be the genotypes of the parents if the offspring had phenotypes in the following proportion?
(a) 9:3:3:1; (b) 1:1:1:1 (Use the symbols Aa and Bb).

Open in App

Solution

a) The genotype of the parent with ratio 9:3:3:1 is $A a B b \times A a B b$
and
b) for the ratio 1:1:1:1 the genotype of the parents is $A a B b \times a a b b$

Suggest Corrections

Similar questions

Q. When the two parental genotypes BB and bb are crossed, the genotype of all F

_{1}

plants is Bb. On selfing of F

_{1}

generation, how many dominant phenotypes will be produced in F

_{2}

generation?

List I	List II
A. $B B \times b b$	1. 100% bb
B. $B b \times B b$	2. 25% BB, 50% Bb, 25% bb
C. $B B \times B B$	3. 100% BB
D. $b b \times b b$	4. 100% Bb

Match the genetic cross of the parents on the left with the genotypes on the right of the offspring most likely to be produced from that cross.

What will be the blood groups of offsprings produced by the parents having following Male-I^AI^B& Female-I^OI^A genotype? Draw a punnet square and write the phenotype and genotype ratio. [3 MARKS]

On selfing a plant of $F_{1}$ generation with genotype AABbCC, the phenotypic ratio in $F_{2}$ generation will be:

Q. A plant of

F_{1}

-generation has genotype "AABbCC". On selfing of this plant, what is the phenotypic ratio in

F_{2}

-generation:

Join BYJU'S Learning Program

What will be the genotypes of the parents if the offspring had phenotypes in the following proportion?(a) 9:3:3:1; (b) 1:1:1:1 (Use the symbols Aa and Bb).

a) The genotype of the parent with ratio 9:3:3:1 is AaBb×AaBband b) for the ratio 1:1:1:1 the genotype of the parents is AaBb×aabb

What will be the genotypes of the parents if the offspring had phenotypes in the following proportion?
(a) 9:3:3:1; (b) 1:1:1:1 (Use the symbols Aa and Bb).

a) The genotype of the parent with ratio 9:3:3:1 is $A a B b \times A a B b$
and
b) for the ratio 1:1:1:1 the genotype of the parents is $A a B b \times a a b b$