Meiosis

Question 1

Homologous chromosome pairs

Answer 1

Partner chromosomes of similar size and genetic composition, one from the mother and one from the father

Question 2

Karyotype

Answer 2

A complete diploid set of chromosomes, arranged according to their size, shape and number in homologous pairsm

Question 3

Mitosis

Answer 3

The division of somatic cells

Question 4

Process of mitosis

Answer 4

• Prophase
• Metaphase
• Anaphase
• Telophase

Question 5

Meiosis

Answer 5

Takes place during the formation of gametes or spores

Question 6

Meiosis

Answer 6

• Prophase 1
• Metaphase 1
• Anaphase 1
• Telophase 1
• Prophase 2
• Metaphase 2
• Anaphase 2
• Telophase 2

Question 7

Prophase

Answer 7

Homologous chromosomes arrange themselves into pairs. Crossing over of chromatids occurs. Nucleus dissolves and spindle fibers develop between the centrioles

Question 8

Metaphase

Answer 8

Bivalents position at the equator. Spindle fibers attach to the centromeres

Question 9

Anaphase

Answer 9

Spindle fibers shorten, bringing chromosomes to the poles. Cytokinesis begins

Question 10

Telophase

Answer 10

Spindle fibers disappear. Nuclear membrane forms around chromosomes. Cytokinesis finishes. Two daughter cells with half the number of chromosomes formed.

Question 11

Importance of meiosis (2)

Answer 11

• Ensures number of chromosomes remains constant

- Genetic variation