chapter 27

Question 1

What are the primary sex organs

Answer 1

testes and ovaries

Question 2

What are the sex cells called that the organs produce

Answer 2

Gametes

Question 3

What type of hormones do gonads secrete

Answer 3

Sex Hormones

Question 4

What are the names of the sex hormones

Answer 4

Androgens (males

Estrogen and progesterone in females

Question 5

What are the accessory reproductive organs

Answer 5

ducts, glands, and external genitalaia

Question 6

Sperm producing male gonads that lie within the scrotum

Answer 6

testes

Question 7

What are the male accessory sex glands

Answer 7

seminal glands, prostate and bulbo-urethral glands

Question 8

The sac of skin and superficial fascia

Answer 8

The scrotum

Question 9

The scrotum contains a pair of ______

Answer 9

Testes

Question 10

the testes are different in temerature?

Answer 10

3 degrees celcius lower

Question 11

why is lower temperature necessary

Answer 11

for sperm prodcutionq

Question 12

What divides the testes into 250 lobules

Answer 12

Septa

Question 13

What is the site of sperm production

Answer 13

seminiferous tubule in the lobules`

Question 14

Sperm is conveyed from semiferous tubules to straight tubules —–>

Answer 14

rete testis—–>efferent ductules—–> epididymis

Question 15

What makes up the eididymous

Answer 15

head, body, and the tail

Question 16

Where is sperm stored

Answer 16

in the tail of the epididymous

Question 17

Does Gamete formation involve meiosis or mitosis

Answer 17

meisosis

Question 18

What are the functions of meiosis

Answer 18

number of chromosomes are cut in half (2n to n)

Introduces genetic diversity

Question 19

What events take place in prophase 1

Answer 19

Synapsis occurs: homologous chromosomes pair up consisting of 4 chromatids

Crossover occurs: exchange of genetic material between male and female chromatids

Question 20

whats after prophase 1

Answer 20

metaphase

Question 21

What happens during metaphase 1

Answer 21

tetrads line up randomly at spindle equator.

Question 22

What happens after metaphase 1

Answer 22

anaphase 1

Question 23

what happens during anaphase 1

Answer 23

sister chromatids of homologous chromosome are separated from sister chromatids of other.

Question 24

What happens at the end of meiosis 1

Answer 24

each daughter cell two copies of one member of each homologous pair

Haploid chromosomal number because still united sisters are considered one chromosome