Colour blindness is more likely to occur in males than in females because:

Which condition is caused by a mutation that involves an entire chromosome rather than a single gene?

Proband in human genetics is:

An Rh woman marries an Rh+ man. She can bear a child Erythroblastosis foetails at her :

Congenital deafness in man is due to the homozygous condition of either or both of the recessive factors d and e. Both dominant factors D and E are necessary for normal hearing. What are the genotypes of the parents and children respectively if a deaf man marries a deaf woman and all the children have normal hearing?

Genes which interact to produce only one phenotypic trait, but neither of them if present alone produces the phenotypic trait in the absence of other are:

If for a pea plant, round yellow seeds are crossed with green wrinkled seeds then what is the phenotypic ratio of the offspring?

An offspring of two homozygous parents differing from one another by alleles at only one gene locus is known as:

In F1, generation in the case of incomplete dominance:

Mendel contributed to genetics by discovering the:

Human females are referred to as sex chromatin positive because of the presence of:

The ABO blood group in man is an example of:

In human beings the dominant trait is:

In Mendel's dihybrid cross, the phenotypic ratio in F2 generation was:

Genes which reduce the viability or cause the death of an individual are called:

The external appearance of an organism for a particular contrasting character is known as:

Co-existence of two or more genes in the same chromosome is known as:

The trait which shows dominance in human is:

In Mendel's experiment the character which did not appear in F1 generation was termed as:

Short DNA fragments referred to as Okazaki pieces are synthesized during DNA replication. The template strand for their synthesis is:

Point mutations are due to:

Amniocentesis is one of the most widely used techniques for the diagnosis of:

The male is a hybrid produced by cross breeding between a male donkey and a female:

Red fruit (R) is dominant to yellow (r) and tallness (T) is dominant to short (t) in tomato plants. What will be phenotype of the offspring if one of the present plants is red homozygous and tall homozygous and the other is red heterozygous and tall heterozygous?

In four 'O' clock plants red colour of flowers (R) is incompletely dominant over white (r), the heterozygous having pink flower colour. What will be the offspring in a cross between red flowers and pink flowers?