The complex formed by a pair of synapsed homologous chromosomes is called 

1. equatorial plate

2. Kinetochore

3. bivalent

4. axoneme

Synapsis occurs between

1. a male and a female gamete

2. mRNA and ribosomes

3. spindle fibres and centromere

4. two homologous chromosomes

During gamete formation, the enzyme recombinase participates during

1. Metaphase-I

2. Anaphase-II

3. Prophase-I

4. Prophase-II

Reduction in the number of chromosomes occurs during

1. Diplotene

2. Diakinesis

3. Metaphase I

4. Anaphase I

Which of the following is not a characteristic feature during mitosis in somatic cells
1. Disappearance of nucleolus

2. Chromosome movement

3. Synapsis

4. Spindle fibres

Bivalent align on the equator during

1. Metaphase I of meiosis

2. Anaphase I of meiosis

3. Metaphase of mitosis

4. Anaphase of mitosis

Match the Column I with Column II –

1. A – 2, B – 4,5, C – 7, D – 1,6, E – 3
2. A – 2, B – 3, C – 7, D – 1, 4, 6, E – 5
3. A – 2, B – 7, C – 3, D – 1, 4, 5, E – 6
4. A – 2, B – 1, C – 4, D – 5, 3, E – 6

Which of the following is characteristic of prophase I of meiosis I:-

1.  Synapsis in zygotene, genetically different chromatid are seen in pachytene

2.  Exchange of genes in leptotene, genetically similar chromatids are seen in zygotene.

3.  Chiasmata are present in metaphase

4.  Splitting of centromere in anaphase-I

Following are the events occurs during meiosis :

(A) Appearance of chiasmata

(B) Synapsis

(C) Assembly of meiotic spindle

(D) Use of recombinase enzyme

Choose the correct sequence :-

1. A$\to$B$\to$C$\to$D

2. B$\to$D$\to$A$\to$C

3. D$\to$C$\to$B$\to$A

4. B$\to$C$\to$A$\to$D