Question

How many parents are necessary for sexual reproduction to occur?
Answer

1

2

3

4

*2

Answer 1

2

Answer 2

2 - a male and a female

Answer 3

Homologous chromosomes pair up during:
Answer

prophase of mitosis

prophase I

prophase II

metaphase I

*prophase I

Answer 4

prophase I - this is called synapsis of the bivalents resulting into tetrads during zygonema stage of prophase I