The frequency of a mutant gene in a population is expected to increase, if the gene is
Recessive
Dominant
Sex linked
Favourably selected
The person who discovered $'Y'$ chromosomes was
Assertion: Polytene chromosomes have a high amount of $DNA$.
Reason: Polytene chromosomes are formed by repeated replication.
Chromosomes were seen first time by
The haploid condition is found in
Segments of $mRNA$ removed during splicing are called......