Multiple Choice
Fill in the blanks. Haploid cells have _______ copy of genetic material, while diploid cells have ____ copies of genetic material.
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17. Meiosis and Sexual Reproduction
Basics of Meiotic Genetics
Multiple Choice
In the basics of meiotic genetics, is a mature human sperm cell haploid or diploid?
A
Diploid (contains two sets of chromosomes, )
B
Haploid (contains one set of chromosomes, )
C
Polyploid (contains more than two complete sets of chromosomes, e.g., )
D
Neither; sperm cells lack nuclear chromosomes because they only carry mitochondrial DNA
Verified step by step guidance1
Recall the definition of haploid and diploid in terms of chromosome sets: diploid cells have two complete sets of chromosomes (2n), while haploid cells have only one set (n).
Understand that meiosis is the process that reduces the chromosome number by half to produce gametes (sperm and egg cells) from diploid precursor cells.
Recognize that mature human sperm cells are the result of meiosis and therefore contain only one set of chromosomes, making them haploid.
Note that polyploid cells have more than two sets of chromosomes, which is not typical for human gametes.
Conclude that mature human sperm cells are haploid (n), carrying a single set of chromosomes, and they do contain nuclear DNA, not just mitochondrial DNA.
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