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
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
D.
Secondary spermatocytes are diploid
Spermatogonia grows into larger primary spermatocytes. After completion of first meiotic cycle, primary spermatocytes leads to the formation of two equal haploid cells, called as secondary spermatocytes. Secondary spermatocytes undergo second meiotic division to form four equal, haploid spermatids. Spermatids transform into sperms through spermiogenesis or spermateliosis.
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