I Quiz Genetics

Genetics is branch of science deals with ___________

• Development

• Embryo

• Heredity

• Evolution

Crossing of two plants differing in one character is a dihybrid cross. (State True or False)

Recessive backcross helps to identify the heterozygosity of the parent. (State True or False)

The genotypic ratio of the monohybrid cross is

• 9:3:3:1

• 1:2:1

• 3:1

• 1:1

Which one of the following is the F2 ratio of complementary genes?

• 9:3:3:1

• 1:2:1

• 9: 7

• 1:1

A blood group contains antigen ------------ on the RBC.

• A

• B

• C

• O

Who proposed the factor hypothesis to explain genic interaction?

• Gregor Mendel

• Bateson and Punnett

• Alexander Fleming

• Sturtevant

If a colour blind man marries a normal woman what will be the character expressed by her son?

• colour blind

• normal

Colour blindness is discovered by -------------------------

• Dalton

• Morgan

• Mendel

• Huxley

What is atavism?

• A new mutation occurring in an organism

• The loss of a trait during evolution

• The reappearance of ancestral traits in an organism

• A type of artificial selection