1. Meiosis & Reproduction Practice Test

2. 1. In meiosis, the DNA is replicated ___.
Once
Twice
Three times
Never

3. 2. Which of these is accomplished by meiosis? Choose all that apply.
It allows organisms to replace worn cells.
It produces unique gametes.
It allows multicelled organisms to get bigger in size.
It allows unicellular organisms to reproduce.
It ensures even distribution of chromosomes.

4. 3. Which of these describes sexual reproduction?
Involves cells from mitosis
Involves cells from meiosis
Offspring are genetic clones
Organisms have 1 set of chromosomes

5. 4. If nondisjunction has occurred during meiosis, which of these is true?
The offspring will be affected.
Crossing-over can’t take place.
The resulting somatic cells will be affected.
There is no effect.

6. 5. Which of these helps to increase variation? Choose all that apply.
Alleles separate
Crossing-over
DNA replication
Independent assortment

7. 6. Which of these does NOT stimulate estrogen & progesterone to release?
Formation of corpus luteum
Fertilization
Ovulation
Implantation

8. 7. Sperm are made in tubes called the ___.
Epididymis
Ejaculatory duct
Seminiferous tubules
Urethra

9. 8. Which of these could NOT take place during ovulation?
Formation of corpus luteum
Fertilization
Increase of LH
Implantation

10. 9. Which of these hormones stimulate the release of estrogen & progesterone? Choose all that apply.
Increased GnRH
Increased HCG
Increased LH
Increased FSH
Increased oxytocin

11. 10. In order for the embryo to implant, what condition must be met?
The endometrium must be thick enough.
The egg has to be released.
The endometrium must be released.
The corpus luteum breaks down.