Single gene can exhibit multiple phenotypic expression, this is called.....
Incomplete dominance
Pleotropism
Co-dominance
Parthenogenesis
The recessive gene that always produces its effect, is
The loss of chromosomal segment is due to
Lesch Nyhan disease is an $X-$linked recessive disorder that causes neurological damage in human beings. $A$ survey of $500$ mates from a caucasion population revealed that $20$ were effected with this disorder. What is the frequency of the normal allele in this population?
Example of intergenic gene interaction is$/$are
Which one of the following is a physical factor that induce mutation?