How many chromosomes are present in a normal human gamete?
Answer and explanation
Correct answer: D. 23
- Step 1: Human somatic cells are diploid (), containing pairs of homologous chromosomes.
- Step 2: Gametes (sperm and egg cells) are produced by meiosis and are haploid (), containing exactly half the somatic chromosome number.
Answer
23.
Why not the others: '46' is the diploid number of chromosomes in human somatic cells; '22' is the number of autosomes in a normal human gamete (omitting the sex chromosome); '44' is the number of autosomes in a normal diploid somatic cell.
Practise more Cell biology and genetics.
Free questions with an explanation for every one, and full timed NEET UG mock tests.
More Cell biology and genetics questions
- Which unit carries hereditary information?
- Which scientists proposed the cell theory?
- During which phase of mitosis do chromosomes line up at the equator of the cell?
- Crossing over occurs during which stage of meiosis?
- Who developed the technique of DNA fingerprinting?
- What is the main component of the plant cell wall?