Chapter 6: Cell division

Question 1

Define bivalent

Answer 1

Paired up homologous chromosomes

Question 2

Define independent assortment

Answer 2

When, in homologous chromosomes, the maternal and paternal chromosomes can be facing either side of the pole. This can lead to genetic variation.

Question 3

Define chiasmata

Answer 3

The point at which the chromatids break and rejoin.

Can lead to genetic variation.

Question 4

Define potency

Answer 4

The ability of a stem cell to differentiate into different cell types.

Question 5

Define totipotent

Answer 5

Stem cells that can differentiate into any type of cell.

Question 6

Define pluripotent

Answer 6

Stem cells that can form all tissue types but not whole organisms.

Question 7

Define multipotent

Answer 7

Stem cells that can differentiate into a range of cells within a certain type of tissue.

Question 8

Define stem cell

Answer 8

Cell that is unspecialised
Able to divide by mitosis
Differentiate into other cell types.