Meiosis and Reproduction

Question 1

Identical looking chromosomes are known as

Answer 1

Homologous pairs, or homologs

Question 2

Autosomes are

Answer 2

are any chromosomes that are not involved in determining the sex of an individual

a) In humans, there are 44 autosomes. Or, stated another way there are 22 homologous pairs of autosomes.

Question 3

Ploidy refers the number of complete sets

Answer 3

Chromosomes

Question 4

Somatic means

Answer 4

body

Question 5

Somatic cells have how many sets of chromosomes?

Answer 5

2, they are diploid

Question 6

Meiosis I

Answer 6

a reduction division that results in two cells with half the normal number of chromosomes

Question 7

Early prophase I

Answer 7

Homologs join together to form tetrads

Question 8

Late prophase I

Answer 8

Non-sister cromatids cross over

Question 9

Metaphase I

Answer 9

Tetrads (4) line up on the plane

Question 10

Prophase II

Answer 10

Spindles are back

Question 11

Metaphase II

Answer 11

We line up again

Question 12

Anaphase II

Answer 12

Individual chromosomes again

Question 13

Final cells are

Answer 13

HAPLOID and unique

Question 14

The final cells are unique because of

Answer 14

• Crossing over during meiosis
• Independent assortment of chromosomes during meiosis
• Random combining of genetically unique gametes

Question 15

Offspring requires

Answer 15

Genetic information and resources

Question 16

Isogamy

Answer 16

Two individuals provide the same amount of resources to the offspring

Question 17

Anisogamy

Answer 17

Not equal sharing of responsibilities