Question

gametes are haploid, which means each gamete contains... *
double the amount of dna
two copies of each chromosome
no dna
only one copy of each chromosome

Explanation:

Gametes are reproductive cells (sperm and egg). Haploid cells have half the number of chromosomes as diploid cells. Diploid cells (like somatic cells) have two copies of each chromosome (one from each parent). Gametes are formed through meiosis. In meiosis, the chromosome number is halved. So, gametes have only one copy of each chromosome.

• Option 1: Double the amount of DNA is incorrect. Gametes have half the DNA content (in terms of chromosome number) compared to somatic cells.
• Option 2: Two copies of each chromosome would make the cell diploid, not haploid.
• Option 3: No DNA is incorrect as gametes need DNA to pass on genetic information.
• Option 4: Only one copy of each chromosome is correct as per the definition of haploid cells.

Answer:

only one copy of each chromosome