During the replication of a bacterial chromosome, DNA synthesis starts from the replication origin site and
moves in bi-directional way
RNA primes are involved
is facilitated by telomerase
moves in one direction of the site
The unwinding of DNA duplex is performed by an enzyme called
lygase
maltase
gyrase
lactase
In the somatic cell cycle
G2-phase follows mitotic phase
DNA replication takes place in S-phase
a short interphase is followed by a long mitotic phase
G1-phase DNA content is double the amount of DNA present in original cell
The DNA eukaryotic chromosomes are made up of
DNA
RNA
DNA and protein
DNA and lipids
Alleles are
linked genes
forms of gene
chromosomal map
both'1' and '3'
Lack of independent assortment of genes A and B in fruit fly Drosophila is due to
repulsion
linkage
crossing over
recombination
The transfer of genes from one chromosome to another, during synapsis, is termed as
crossing-over
dominance
independent assortment
Bacillus thuringiensis (BT) strains have been used for designing novel
bio-fertilizers
bio-insecticidal plants
bio-metallurgical techniques
bio-mineralization processes
The polygenic genes show
similar genotype
different genotype
different karyotype
different phenotype
The promotor gene in lac operon
inhibits t-RNA translation
inhibits enzyme synthesis
inhibits m-RNA transcription
both'2' and '3'