Which of the following has/have only one pair of chromosome?
a) Penicillium
b) human
c) wheat
d) some ferns
Explanation: Penicillium is fungus
Which of the following has/have only more than 500 pairs of chromosomes?
a) Penicillium
b) human
c) wheat
d) some ferns
Explanation: a fern no larger than a dinner plate currently holds the title for highest chromosome count, with a whopping 720 pairs crammed into each of its nuclei.
Some species have more than two sets of chromosomes in their somatic cells, they are called……..
a) haploid
b) diploid
c) polyploid
d) monoploid
Explanation: tetraploid= 4 sets, hexploid= 6 sets
Half number of chromosome than somatic number of chromosome is termed as…….
a) haploid
b) diploid
c) polyploid
d) monoploid
Explanation: for example in human 23 chromosomes in sperm is haploid
Which of the following is/are usually haploid cells?
a) gametes
b) spores
c) WBCs
d) both a and b
Explanation: a haploid cell may be monoploid (one set) diploid (two sets) triploid (three sets) etc
How much number of somatic chromosomes is present in human?
a) 46
b) 21
c) 7
d) 23
