2.3 Cell Division - Meiosis

Question 1

Meiosis

Answer 1

• Only occurs in sex cells to produce gametes (egg and sperm cells)
• Results in 4 different daughter cells (haploid)

Question 2

Reduction Division

Answer 2

Meiosis is called a reduction division because chromosome numbers goes from 46 to 23.

Question 3

Haploid

Answer 3

A cell that has 23 chromosomes.

Question 4

Interphase and Prophase 1

Answer 4

Same as mitosis, DNA is duplicated, and chromosomes condense.

Question 5

Metaphase 1

Answer 5

Instead of lining up in single file, the chromosomes line up in their homologous pairs.

Question 6

Anaphase 1

Answer 6

Homologous pairs are separated.

Question 7

Telophase 1

Answer 7

Chromosome gather at the poles of the cells, nuclear membranes reform.

Question 8

Meiosis 2

Answer 8

Undergoes the same division as mitosis, where the 2 haploid cells are divided to create 4 different haploid daughter cells.

Question 9

Crossing Over

Answer 9

Homologous chromosomes swap section with each other in Prophase 1.
- increases genetic variation

Question 10

Independent Assortment

Answer 10

During metaphase, homologous chromosome pairs align randomly, leading to an unequal distribution of maternal (mother) and paternal (father) chromosomes in the resulting cells.