Which type of immunoglobin is/are abundantly found in the foetus?

• IgE

• IgE

• IgM

• IgD

IUCN stands for 

• Indian Union for Conservation of Nature

• International Union for Conservation of Nature

• Indian Union of Chemical Nomenclature

• International Union for the conservation of Nutrients

The secretory phase in the human menstrual cycle is also called as

• Luteal phase and last for about 6 days

• Follicular phase lasting for about 6 days

• Luteal phase and last for about 13 days

• Follicular phase and last for about 13 days.

Which one of the following statements is correct?

• Hard outer of pollen is called intine

• Sporogenous tissue is haploid

• ENdothelium produces the microspores

• Tapetum nourishes the developing pollen

45.

Variation in gene frequencies within a population can occur by chance rather than by natural selection. This is referred to as

• Genetic flow

• Genetic drift

• Random mating

• Genetic load

If two persons with 'AB' blood group marry and have a sufficiently large number of a children, these children could be classified as 'A' blood group. 'AB blood group 'B' blood group in 1:2:1 ratio.

The modern technique of protein electrophoresis reveals the presence of both 'A' and 'B' type proteins in 'AB' blood group individuals. This is an example of

• Codominance

• Incomplete dominance

• Partial dominance

• Compelete dominance

Which of the following DNA sequences qualifies to be designated as a palindrome?

• 5'-GACCAG'3 in one strand

• 3'GACCAG-5' in one strand

• 5-GACGAG-3', 3'-CIGGIC-5'

• 5'-AGCGCT-3', 3'-TCGCGA-5'

Which one of the following pairs is not correctly matched?

• VItamin B₁₂ → Pernicious anaemia

• Vitamin-B₆ → Loss of appetite

• Vitamin-B₁ →Beri-Beri

• Vitamin-B₂ → Pellagra

Humoral immunity is mediated by

• R-cells

• T-cells

• NK-cells

• Plasma cells

In the lac operon model, lactose molecules function is

• inducers,which bind with the operator gene

• Repressors, which bind the the operator gene

• inducers, which bind the repressor protein

• corepressore, which bind with the repressor protein