A haploid cell has ______ set(s) of ______ chromosomes.

• A. two; unpaired
• B. one; paired
• C. one; unpaired
• D. two; paired

Answer: (C)

Verified step by step guidance

1. Understand the definition of a haploid cell: A haploid cell contains only one complete set of chromosomes.
2. Recall that chromosomes in haploid cells are unpaired because there is only one copy of each chromosome, unlike diploid cells which have pairs.
3. Recognize that the term 'set' refers to the full complement of chromosomes from one parent.
4. Therefore, a haploid cell has one set of chromosomes, and these chromosomes are unpaired.
5. Match this understanding to the options given, confirming that the correct description is 'one; unpaired'.