In sickle-cell anaemia glutamic acid is replaced by valine. Which one of the following triplet codes for valine?
G G G
A A G
G A A
G U G
Person having genotype $\mathrm{I}^a \mathrm{I}^b$ would show the blood group as AB . This is because of
pleiotropy
codominance
segregation
incomplete dominance
ZZ/ZW type of sex determination is seen in
platypus
snails
cockroach
peacock
A across between two tall plants resulted in offspring having few dwarf plants. What would be the genotypes of both the parents?
TT and Tt
Tt and Tt
TT and TT
Tt and tt
In a dihybrid cross, if you get $9: 3: 3: 1$ ratio it denotes that
the alleles of two genes are interacting with each other
it is a multigenic inheritance
it is a case of multiple allelism
the alleles of two genes are segregating independently