List the gene counts of chromosome number 1 and Y chromosome.

In a certain taxon of insects some have 17 chromosomes and the others have 18 chromosomes. The 17 and 18 chromosome-bearing organisms are

If an endosperm cell of an angiosperm contains 24 chromosomes, the number of chromosomes in each cell of the root will be

Some species of plants and animals identical have number of chromosomes. Can number of chromosomes differentiate the character of species from one another. Give reasons.

Metacentric chromosomes are _____ shaped chromosomes.

Chromosome number is halved in meiosis during

Point of location of a gene on a chromosome.

In Pinus, the pollen grain has 6 chromosomes. What is the number of chromosomes in its endoperm

During anaphasic movements of chromosomes, ___ of each chromosome is/are towards the pole and ___ of the chromosome trail(s) behind.

In Drosophila melanogaster, there are four pairs of chromosomes. If there occurs chromosomal aberrations resulting in trisomic and monosomic condition , what will be the chromosomal count ? Write correct chromosomal count against respective chromosomal aberration.

In maize, a meiocyte has 20 chromosomes. What will be the number of chromosomes in its somatic cell ?