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The males of roundworms have...

The males of roundworms have

A

One y-chromosome

B

One chromosome less than female

C

Two similar sex chromosomes

D

Distinct sex chromosomes

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Identify the Organism**: The question refers to the males of roundworms, which belong to the phylum Nematoda (also known as Aschelminthes). 2. **Understand Chromosomal Composition**: In roundworms, there is a distinct difference in the chromosomal makeup between males and females. Females typically have two X chromosomes (XX), while males have a different configuration. 3. **Determine Male Chromosomal Configuration**: Males of roundworms have only one sex chromosome, which is an X chromosome. They do not possess a Y chromosome or any other sex chromosome. 4. **Conclusion on Chromosomal Count**: Since males have one X chromosome and females have two, males effectively have one chromosome less than females. 5. **Select the Correct Answer**: Based on the above analysis, the correct answer is that males of roundworms have one chromosome less than females. **Final Answer**: Males of roundworms have one chromosome less than females. ---
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