In Mendel's experiment with green pea, round seed shape (RR) was dominant over wrinkled seeds (rr) yellow cotyledon (YY) was dominant over green cotyledon (yy) what are the expected phenotypes in the F1 generation of the cross RRYY x rryy ?
Only round seeds with green cotyledons
Only wrinkled seeds with yellow cotyledons
Round seeds with yellow cotyledons and wrinkled seeds with yellow cotyledons
The codons causing cahain termination are __________________.
TAG, TAA, TGA
GAT, AAT, AGT
AGT, TAG, UGA
UAA, UAG, UGA
A common test to find the genotype of a hybrid is by ______________.s
crossing of one F2 progeny with male parent
crossing of one F2 progeny with female parent
studying the sexual behaviour of F1 progenies
crossing of one F1 progeny with male parent
A woman with normal vision, but who's father was colourblind, marries a colourblind man. Suppose that the fourth child of this couple ____________.
must have normal vision
will be partially colourblind since he is heterozygous for the colourblind mutant allele
must be colourblind
may be colourblind or may be of normal vision
Mutations used in agriculture are commonly _______________.
induced
spontaneous
lethal
recessive and lethal
A human male produces sperms with the genotype AB, Ab ab and ab pertaining to two diallelic characters in equal proportions. What is the corresponding genotypeof thisperson?
AaBb
AaBB
AABb
AABB
In which mode of inheritance do you expect more maternal influence among the offspring ?
Autosomal
Cytoplasmic
Y - linked
X -linked
Protein synthesis in an animal cell occurs _____________.
only on the ribosomes present in cytosol
on ribosome present in cytoplasmic reticulum
only on envelope and endoplasmic reticulum
on ribosomes present in the nucleolus as well as in cytoplasm
One gene one enzyme relationship was eastablished for the first time in?
Neurospora crassa
Salmonella thyphimurium
Escheriachia coli
Diplococcus pnemococcus
During replication of a bacterial chromosomes DNA synthesis starts from a replication origin site and _____________.
RNA primers are involved
is facilitated by telomerase
moves in one direction of the site
moves in bi - directional way