Holandric genes are

Honeybees produce their young ones only by sexual reproduction. Inspite of this,in a colony of bees we find both haploid and diploid individuals. Name the haploid and diploid individuals in the colony and analyse the reasons behind their formation.

In the buccal cavity slide cell of an individual, we observe a dark-stained body near the nuclear membrane. The genotype of the individual may be

In a population of a grasshopper species, the chromosome number of some members is $23$ and some other members possess $24$ chromosomes. The $23$ and $24$ chromosome-bearing members in this species are . . . . . . .

The average ratio of male to female individuals based on $XX$ and $XY$ type of sex determination in the total human population is:

In higher unisexual animals,one pair of chromosomes is not identical in two sexes. It is called as . . . . . . .