Chapter 22 - The Reproductive System

Question 1

2n

Answer 1

diploid

Question 2

the production of gametes from a pool of germ cells

Answer 2

gametogenesis

Question 3

chromosomes other than sex chromosomes

Answer 3

autosomes

Question 4

a series of
two cell divisions
that generate
daughter cells w/
half the normal
chromosome number

Answer 4

meiosis

Question 5

Birth is also called _____.

Answer 5

parturition

Question 6

primary reproductive organs

Answer 6

gonads

Question 7

class of sex hormones secreted by testes

Answer 7

androgens

Question 8

sex hormones secreted by ovaries

Answer 8

estrogens and progesterone

Question 9

How long is a developing human called an embryo?

Answer 9

the first two months after conception

Question 10

srY gene

Answer 10

sex-determining region of the Y chromosome

Question 11

The srY gene codes for a protein called _____.

Answer 11

testis-determining factor

Question 12

the role of testosterone and Mullerian inhibiting substance in determining the sexual characteristics of a person

Answer 12

sex differentiation

Question 13

The presence of these two hormones cause a fetus to develop as a male.

Answer 13

testosterone and Mullerian inhibiting substance (MIS)

Question 14

MIS

Answer 14

Mullerian inhibiting substance

Question 15

The absence of MIS allows the Müllerian ducts to develop into _____.

Answer 15

female organs

Question 16

external features that distinguish the sexes from each other

Answer 16

secondary sex characteristics