Genes located on Y- chromosome are _____________.
mutant genes
sex linked genes
autosomal genes
holandric genes
One gene one enzyme relationship was eastablished for the first time in?
Neurospora crassa
Salmonella thyphimurium
Escheriachia coli
Diplococcus pnemococcus
A mutation at one base of the first codon of a gene produceers a non - functional protein. Such a mutation is reffered is called ________________.
frameshift mutation
missence mutation
non - sense mutation
reverse mutation
According to IUCN red list, what is the status of red panda (Athurus flugens) ?
Vulnerable species
Critically endangered species
Extinct species
Endangered species
Telomerase is an enzyme which is a ________________.
repetitive DNA
RNA
simple protein
ribonucleoprotein
Amino acid sequence in protein synthesis is decided by the sequence of ________________.
tRNA
mRNA
CDNA
rRNA
What is true about is isolated small tribal popualtions?
There is a decline in population as boys marry girl only from their own tribe
Hereditary diseases like colour blindness do not spread in teh isolated population
wrestlers who develop strong body muscles in their life time pass this cahracter on their progeny
There is no change in population sixe as they have large gene pool
The formation of multivalents at meiosis in diploid organism is due to ________________.
monosomy
inversion
deletion
reciprocal translocation
Which of the following is used generally used fir induced mutagenises in crop plants ?
Alpha particles
X rays
UV rays
Gamma rays (from cobalt 60)
Genetic code consists of ________________.
adenine and guanine
cytosine and guanine
All of the above
