91.

In eukaryotic genes, coding sequences are called

• introns

• exons

• regulatory sequence

• repetitive DNA

• repetitive DNA

Which site of the tRNA pairs through hydrogen bonding with the triplet codes on mRNA?

• Codon

• 5' end of tRNA

• 3' end of tRNA

• Anticodon

• Anticodon

Find the wrongly matched pair

• Har Gobind Khorana - synthesized RNA molecules chemically

• George Gamow - codon is triplet's

• Meselson and Stahl - regulation of gene expression

• Alec Jeffreys - DNA finger printing

• Alec Jeffreys - DNA finger printing

If an inheritable mutation is observed in a population at high frequency, it is referred as

• DNA polymorphism

• Expressed sequence tag

• Sequence annotation

• Linkage

• Linkage

In eukaryotes, RNA polymerase II transcribes

• hnRNA

• 18S rRNA

• 28S rRNA

• tRNA

• tRNA

Which of the following statement is wrong?

• The Sertoli cells provide nutrition to the developing male germ cells

• Leydig cells synthesize and secrete androgens

• Secretions of the acrosome helps the sperm to enter into the cytoplasm of the ovum

• Secondary spermatocytes are diploid

• Secondary spermatocytes are diploid

The inner glandular layer of the uterus is

• endometrium

• myometrium

• fallopian tubes

• perimetrium

• perimetrium

The release of sperms from the seminiferous tubules is called

• Spermiogenesis

• Spermiation

• Spermatogenesis

• Fertilisation

• Fertilisation

Find the wrongly matched pair

• Endemism - species confined to one region and not found anywhere else

• Hot spots - regions with species richness

• Alien species to India - Clarias gariepinus

• Lungs of the planet - Amazon Rain Forest

• Lungs of the planet - Amazon Rain Forest

Which one among these is NOT an ex-situ conservation strategy?

• Seed banks

• Botanical gardens

• Cryopreservation

• Biosphere reserves

• Biosphere reserves