Meiosis - stages, crossing over and gametes

Created April 2020, Offline version here
Video by Paul Anderson, also on his website Bozeman Science.

1
1
How many possible combinations of gametes can be produced by independent assortment of a diploid cell with 4 pairs of chromosomes?
2
1
What is the order of the stages in meiosis II?
3
1
What is the purpose of crossing over in meiosis?
4
1
During which stage of meiosis are homologous chromosomes separated?
5
1
Which of these correctly describes a difference between meiosis and mitosis?
6
1
How many chromosomes are present in a normal human sperm cell?
7
1
What is generated by the end of telophase I (and cytokinesis)?
8
1
What is the name of the structure which separates chromosomes during meiosis?
9
1
How many functional gametes are produced at the end of meiosis in females?
10
1
During which stage of the cell cycle does crossing over occur?
11
1
Which of these describes a feature that meiosis and mitosis share?
12
1
During which phase of meiosis is the DNA replicated?
13
1
Which of these is true of sister chromatids?
14
1
Identify the stage of meiosis by the description of the cell: 1. The nucleus is not present 2. Sister chromatids are aligned at the centre of the cell 3. The spindle is attached to each chromatid
15
1
Which of these statements describes what occurs during meiosis I?
16
1
Which of these does NOT produce genetic variation?
17
1
Where on the chromosome does the spindle attach?
18
1
Which of these cells are haploid?
19
1
Which of these does NOT describe a difference between meiosis I and meiosis II?
20
1
What is a karyotype?
21
1
What happens once the egg is fertilized by a sperm?