Definition and Significance of Test Cross

Q.

What is the meaning of the reciprocal cross?

Q. The genotype of a plant showing the dominant phenotype can be determined by :

1. Test cross
2. Dihybrid cross
3. Pedigree analysis
4. Back cross

Q.

What is the purpose of Punnett square?

Q.

Study the following Punnett square and identify the genotypes of male and female parents

1. male parent - AaBb and Female parent - aaBB

2. Male parent - aaBB and Female parent - AaBb

3. Male parent - AaBB and Female parent - AaBb

4. Male parent - AABB and Female parent - Aabb

Q.

What is the advantage of genetic recombination?

Q. is performed to identify the genotype of an unknown plant

1. Back cross
2. Test cross
3. Monohybrid cross
4. Dihybrid cross

Q. Mating an organism to a double recessive in order to determine whether it is homozygous or heterozygous for a character under consideration is called

1. reciprocal cross
2. test cross
3. back cross
4. dihybrid cross

Q. A common test to find the genotype of a hybrid is by :

1. Crossing of one $F_1$ progeny with male parent
2. Crossing of one $F_2$ progeny with male parent
3. Crossing of one $F_2$ progeny with female parent
4. Studying the sexual behaviour of $F_1$ progenies

Q.

The technique used to find out if a dominant phenotype is homozygous or heterozygous is called:

1. Back cross

2. Test cross

3. Punnett tool

4. Monohybrid cross