Sexual Reproduction - Spermatogenesis & Oogenesis

Question 1

What are the disadvantages to sexual behavior?

Answer 1

• physical damage
• lowered feeding
• lack of building shelters
• resources expenditure

Question 2

What is the fertilization of female and male haploid sex cells called?

Answer 2

sexual reproduction

Question 3

Which processes are the main cause for genetic diversity in sexual reproduction?

Answer 3

• independent assortment
• crossing over at the chiasmata
• mating behavior

Question 4

What is the making of sex cells called?

Answer 4

gametogenesis

Question 5

What is the process of two individuals getting together sexually to increase genetic diversity?

Answer 5

mating

Question 6

What is the fusion of sex cells called?

Answer 6

fertilization

Question 7

What is the place for sperm storage in males?

Answer 7

testes

Question 8

What is the place for ova (eggs) storage in females?

Answer 8

ovaries

Question 9

What are non-sex cells called in the body?

Answer 9

somatic cells

Question 10

What are cells which forms sex cells such as oogonia and spermatogonia (gametes)?

Answer 10

germ cells

Question 11

What is the reproduction proccess which forms 4 mature sperm cells?

Answer 11

spermatogenesis

Question 12

1) Germ cells (2n) will go through mitosis and form ____ (2n), then they will go finish mitosis and form primary ____ (2n).
2) They will undergo their first meiotic division to form secondary ____ (n), then they will go through their second meiotic division and form ____ (n).
3) Finally, the spermatids will undergo differentiation and maturation into sperm cell ____ (n).

Answer 12

1) spermatogonium; spermatocytes
2) spermatocytes; spermatids
3) gametes

Question 13

In mammals, what form do the spermatids take that allows for further support from other X chromosomes?

Answer 13

cytoplasmic bridges

Question 14

What is the reproduction system for one ovum?

Answer 14

oogenesis

Question 15

1) They begin as female germ cells (2n) and then go through mitosis as ____ (2n) and then finishes as the primary ____ (2n), this stage is arrested in the prometaphase where they will remain for most of the female’s life.
2) After the first meiotic division, the secondary ____ (n) will form where they will go through differentiation and growth, attaching the first polar body (including split chromosomes).
3) This then leads into the second meiotic division where the ____ (n) is created, attaching the second polar body (a split from the first polar body). When the polar bodies degrade, the ____ (n) is then created.

Answer 15

1) oogonium; oocyte
2) oocyte
3) ootid; ovum

Question 16

The process for females will hold at the first mitotic division until it is ____, then the second miotic division is not completed until after ____ takes place.

Answer 16

released; fertilization