Quiz 6

Question 1

1. Which of these is NOT a difference between meiosis in human females and males?
   Select one:
   a. males produce billions of gametes in a lifetime, while women produce only hundreds
   b. male meiosis makes four sperm, female meiosis makes four ova and several polar bodies
   c. meiosis is completed before fertilisation in males, and after fertilisation in females
   d. meiosis ceases at menopause in women but continues to old age in men
   e. meiosis in females begins before birth, while meiosis in males begins at puberty

Answer 1

b. male meiosis makes four sperm, female meiosis makes four ova and several polar bodies

Question 2

2. After ovulation, the secondary oocyte enters the
Select one:
  a. oviduct
  b. zona pellucida
  c. ovary
  d. corpus luteum  
  e. vagina

Answer 2

a. oviduct

Question 3

3. In mitosis, chromatids are pulled apart during
Select one:
  a. cytokinesis
  b. telophase
  c. anaphase  
  d. prophase
  e. metaphase

Answer 3

c. anaphase

Question 4

4. These cells are responsible for cell mediated immunity. They arise in the thymus. They are:
   a. cytotonic B-cells
   b. antigens
   c. T-lymphocytes
   d. phagocytes
   e. memory cells

Answer 4

c. T-lymphocytes

Question 5

5. While examining a diploid animal cell in metaphase of mitosis, you count 46 chromosomes. Which of the following statements could you make?
   Select one:
   a. the cell is from a human being
   b. sperm from this animal would contain 23 chromosomes
   c. there are 46 DNA molecules present in the metaphase plate
   d. the next phase of mitosis will be telophase
   e. crossing over is about to occur

Answer 5

b. sperm from this animal would contain 23 chromosomes

Question 6

6. Accessory fluids are added to sperm cells by the:
Select one:
  a. cytoplasm
  b. seminal vesicle  
  c. uterus
  d. epididimys
  e. urethra
Feedback
The correct answer is: seminal vesicle

Answer 6

b. seminal vesicle

Question 7

7. Pelvic inflammatory disease in commonly caused by
Select one:
  a. genital herpes
  b. having too much sex
  c. chlamydia  
  d. syphilis
  e. HIV

Answer 7

c. chlamydia

Question 8

8. Sperm cells mature in the:
Select one:
  a. epididimys  
  b. cytoplasm
  c. uterus
  d. prostate
  e. urethra

Answer 8

a. epididimys

Question 9

9. Trace the path of sperm through the female reproductive tract.
   Select one:
   a. vagina, uterus, ureter, ovary
   b. urethra, vagina, uterus, cervix
   c. vagina, cervix, uterus, fallopian tube
   d. esophagus, fallopian tube, oviduct, uterus
   e. vagina, uterus, fallopian tube, ovary

Answer 9

c. vagina, cervix, uterus, fallopian tube

Question 10

10. The main function of the acrosome is to
    Select one:
    a. fuse the egg and sperm nuclei
    b. prevent fertilization of other species
    c. penetrate the cervical mucus
    d. improve the streamlining of spermatozoa
    e. help the sperm penetrate the egg

Answer 10

e. help the sperm penetrate the egg

Question 11

11. Which of the following are genetically identical?
Select one:
  a. two cells resulting from mitosis  
  b. two cells from fraternal twins
  c. two gametes
  d. two cells resulting from meiosis I
  e. two cells resulting from meiosis II

Answer 11

a. two cells resulting from mitosis

Question 12

12. During prophase and metaphase, the replicated strands of DNA are held together by:
Select one:
  a. chromatin
  b. desmosomes
  c. chromatids
  d. centromeres  
  e. nucleosomes

Answer 12

d. centromeres

Question 13

13. 
Which of the following consists of tissue from both the mother and the fetus?
Select one:
  a. yolk sac
  b. umbilical cord
  c. uterus
  d. allantois
  e. placenta

Answer 13

e. placenta

Question 14

15. Allergies are associated with immune responses mediated by:
Select one:
  a. IgX
  b. IgM
  c. IgG
  d. IgA
  e. IgE

Answer 14

e. IgE