Week 10 Homework - Reproduction

Question 1

Which process produces polar bodies?

Answer 1

Oogenesis

Question 2

Which hormones are NOT likely going to elevate during menopause?

Answer 2

Estrogen

Question 3

What hormone from the hypothalamus helps to regulate the production of testosterone in the testicles?

Answer 3

Gonadotropin releasing hormone (it’s in the name ‘gonads’)

Question 4

Where are the seminiferous tubules located?

Answer 4

The testicles

Question 5

Which process initiates before birth and only concludes upon fertilization?

Answer 5

Oogenesis

Question 6

Which process produces cells requiring further specialization before they can perform their needed role in reproduction?

Answer 6

Spermatogenesis

Question 7

Which process allows growth, development in utero, repair or replacement of old or damaged cells?

Answer 7

Mitosis

Question 8

If you cross a heterozygous and homozygous recessive individual for an autosomal trait, what percent of individuals would be expected to display the dominant phenotype?

Answer 8

50%

Question 9

Which process produces cells that can self-propel?

Answer 9

Spermatogenesis

Question 10

What hormone stimulates ovulation?

Answer 10

Luteinizing hormone

Question 11

Which process is the same regardless of sex?

Answer 11

Mitosis

Question 12

Identify one of the structures that stores mature sperm prior to ejaculation?

Answer 12

Vas (ductus) deferens
Ducts store

Question 13

Where are cilia located in the reproductive system?

Answer 13

Uterine tube

Question 14

When testes fail to descend into the scrotum the condition is known as…

Answer 14

Cryptorchidism

Question 15

At what level of sperm production could an individual struggle with fertility problems?

Answer 15

20 million sperm per 3 ml of ejaculate.

Question 16

Which of the following terms would not be an appropriate descriptor of an egg or sperma.
a.Gamete.
b. Spermatogenesis and oogenesis are sex specific processes.
c. Haploid.
d. Possessing 23 chromosome pairs.
e. Created through meiosis.

Answer 16

Possessing 23 chromosome pairs
(just 23 chromosomes…they are haploid)

Question 17

What structure supplies the enzymes needed to activate the sperm in the ejaculate?

Answer 17

Prostate
(Protein, which is what enzymes are)

Question 18

What component of the nervous system controls the process of erection?

Answer 18

Parasympathetic nervous system

Question 19

What hormones are produced by the corpus luteum?

Answer 19

estrogen and progesterone

Question 20

How do you represent a female that is heterozygous for a sex-linked trait?

Answer 20

XAXa

Question 21

When are estrogen levels highest?

Answer 21

Within the middle of the cycle from day 10 to 16 of the uterine cycle.

Question 22

Identify the first phase of the ovarian cycle.

Answer 22

Follicular
(then Ovulation, then Luteal)

Question 23

What structure supplies the fructose to the ejaculate necessary for sperm energy?

Answer 23

Seminal vesicles
(semen fed by fructose)

Question 24

Which form of non-disjunction error is most likely to be fatal when it impacts an autosomal chromosome (chromosomes 1-22 instead of chromosome 23).
a. Trisomy where an individual has too much genetic informaiton.
b. Monosomy where an individual has too little genetic information.

Answer 24

Monosomy

Question 25

Identify the phase of the uterine cycle when estrogen and progesterone production increases.

Answer 25

Secretory

Question 26

Examine an image of the female reproductive system and identify the structure that extends closest to the ovaries.
a. Ampulla.
b. Infundibulum.
c. Oviduct.
d. Fimbriae.
e. Fundus.

Answer 26

Fimbriae

Question 27

What hormone becomes a unique marker of pregnancy?

Answer 27

Human chorionic gonadotropin

Question 28

When are homologous chromosomes separated?

Answer 28

Meiosis 1
(sister chromatids during Meiosis 2)

Question 29

What structure supplies the lubrication during intercourse?

Answer 29

Bulbourethral gland