Chromosomes and Ploidy

Q.

Meiocyte of pea plant has 14 chromosomes, how many chromosomes will be there in the somatic cell of the pea plant?

1. 28

2. 14

3. 7

4. 56

Q.

At the bivalent stage, how many chromatids will be there in a human cell?

1. 23

2. 92

3. 22

4. 46

Q.

The normal number of chromosomes in the progeny is maintained when the germ cells:

1. divide by the process of mitosis

2. take all maternal and paternal chromosomes

3. divide by mitosis and take all maternal and paternal chromosome

4. take one chromosome from each pair

Q. Which division takes most time
(a) mitosis
(b) amitosis
(c) meiosis
(d) none of these

Q. Identify X, Y and Z in the uncoiling of chromosome.

1. X = Centromere
   Y = Peptone
   Z = Dextrose sugar
2. X = Chromatin
   Y = Histone
   Z = Pentose sugar
3. X = Chromatid
   Y = Histone
   Z = Pentose sugar
4. X = Chromatin
   Y = Peptone
   Z = Pentose sugar

Q. Somatic cells divide by
(a) mitosis
(b) meiosis
(c) both of these
(d) none of these

Q.

At the bivalent stage, how many chromatids will be there in a human cell?

1. 46

2. 23

3. 92

4. 22

Q.

Humans have 46 chromosomes. How many chromosomes will their sperm and egg have?

1. 27

2. 23

3. 26

4. 20

Q. The chromatin consists of repeated pattern of bodies called as

1. Chromonema
2. Nucleosomes
3. Episomes
4. Histones

Q. Identify the odd one and write to the category to which others belong. Mitosis, Amitosis, Meiosis, Cell Cycle. By the way, What is Amitosis?

Q.

Meiosis takes place in:

1. Only diploid cells

2. Both haploid and diploid cells

3. None of the above

4. Only haploid cells

Q.

At the bivalent stage, how many chromatids will be there in a human cell?

1. 46

2. 92

3. 22

4. 23