6.3 Sexual Reproduction, Pregnancy, and Fetal Development

Question 1

What are gametes?

Answer 1

sex cells

Question 2

What are the gametes in females?

Answer 2

eggs/oocytes

Question 3

What are the gametes in males?

Answer 3

sperm/spermatocytes

Question 4

What is copulation?

Answer 4

sexual union to facilitate the reception of sperm by the female

Question 5

What occurs during sexual reproduction?

Answer 5

offspring inhereits half its genes from one parents and the other half from another parent

Question 6

How many chromosomes do human cells normally contain?

Answer 6

46

Question 7

What is a diploid cell?

Answer 7

2n; full number of chromosomes

Question 8

What type of division do diploid cells undergo?

Answer 8

mitosis

Question 9

What occurs during mitosis?

Answer 9

cell grows and divides into two cells each containing 2n chromosomes

Question 10

What are haploid cells?

Answer 10

n; contain half the number of chromosomes

Question 11

Are gametes diploid or haploid?

Answer 11

haploid

Question 12

What types of cells undergo meiosis?

Answer 12

reproductive cells

Question 13

What is a zygote?

Answer 13

fertilized eggs

Question 14

What determines the entirety of the genetic characteristics of an offspring?

Answer 14

46 chromosomes

Question 15

Which parent determines the sex of an offspring?

Answer 15

father’s sperm

Question 16

When does pregnancy begin?

Answer 16

formation of a zygote

Question 17

How long are sperm viable for after ejaculation?

Answer 17

3-5 days

Question 18

How long can an egg survive after ovulatioN?

Answer 18

24 hours

Question 19

Where does fertilization typically occur?

Answer 19

oviducts

Question 20

What do the chemicals released by the sperm break down?

Answer 20

corona radiata