Regents Prep: Living Environment
Multiple-Choice Questions
Regents Prep Living Environment: Topical Multiple-Choice Question Archive
Use of Topical Archive Multiple-Choice Questions
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Human Reproductive Systems: Question 1 of 2
In humans, the fusion of the nuclei of two functional gametes results in the formation of a
  1. monoploid cell
  2. zygote
  3. cotyledon
  4. polyploid cell

Correct Answer Number: 2

Explanation: A monoploid cell is a cell with half the normal number of chromosomes, these are gametes. Fusing two of these together restores the normal number of chromosomes in fertilization. A cotyledon is part of a seed and a polyploid cell is a cell with more than the normal number of chromosomes.


Human Reproductive Systems: Question 2 of 2
In humans, what is the ratio of the number of gametes produced from one male primary sex cell to the number of gametes produced from one female primary sex cell?
  1. 1:3
  2. 1:4
  3. 3:1
  4. 4:1

Correct Answer Number: 4

Explanation: Four viable sperm cells are produced from one primary sex cell, whereby only one viable egg cell is produced, due to the unequal division of cytoplasm and the formation of polar bodies, which wither and die.
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