Gametogenesis/Sexual Life Cycles

Question 1

Special cells in the testis give rise to sperm through the process of meisois. This occurs such that mature sperm carry half the chromosome number found in male body cells. During this process 4 haploid sperm are produced/ per meiosis.

Answer 1

Spermatogenesis - production of sperm

Question 2

The ____ contains the nucleus which contains the chromosomes. The top of the head contains the acrosome, which produces enzymes allowing it to enter the egg.

Answer 2

parts of sperm
Head

Question 3

The ____ is made up of two parts, the midpiece which contains energy releasing mitochondria and a flagellum which propels the sperm forwards

Answer 3

parts of sperm
Tail

Question 4

Eggs mature within follicles of the ovaries. Follicles are clusters of cells which surround the egg and prepare it for release. As the egg matures and undergoes meiosis, it increases in size as nutrients are added to the cytoplasm. An ovum/egg will contain half the number of chromosomes as the female body cells. During the formation of an egg, 1 egg is produced and three polar bodies. This occurs because of the unequal cell divisions of the cytoplasm that occurs during _________. Polar bodies disintegrate.

Answer 4

**Oogenesis - production of eggs*

Question 5

Eggs mature within follicles of the ovaries. Follicles are clusters of cells which surround the egg and prepare it for release. As the egg matures and undergoes meiosis, it increases in size as nutrients are added to the cytoplasm. An ovum/egg will contain half the number of chromosomes as the female body cells. During the formation of an egg, 1 egg is produced and three polar bodies. This occurs because of the unequal cell divisions of the cytoplasm that occurs during _________. Polar bodies disintegrate.

Answer 5

**Oogenesis - production of eggs*