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
A.
DNA polymorphism
DNA polymorphism is any difference in the nucleotide sequence between individuals.
Expressed sequence tag is a short sequence of a cDNA sequence. It is used to identify gene transcripts.
Sequence annotation is the process of marking specific features in a DNA, RNA or protein sequence with descriptive information about structure or function.
Linkage is the presence of two different genes on the same chromosome.
Triplet codon or genetic code is the code of three nucleotides which determine one amino acid in a protein.
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