Question

The following chart shows the number of 2n chromosomes in various organisms. Which series lists the number of chromosomes in each gamete of a mosquito, corn, a human, and a dog? (SC.012.L.16.17)
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1 point
Captionless Image
3, 10, 23, 39
3, 15, 22, 46
6, 20, 23, 39
6, 20, 46, 78

Answer 1

To determine the number of chromosomes in gametes for the organisms listed, we need to know the diploid (2n) chromosome counts for each organism and then divide by two, as gametes are haploid (n).

1. **Mosquito**: The common mosquito (e.g., Aedes aegypti) has a diploid number of 6 (2n = 6), so the number in gametes (n) is 3.
2. **Corn**: Corn has a diploid number of 20 (2n = 20), so the number in gametes (n) is 10.
3. **Human**: Humans have a diploid number of 46 (2n = 46), so the number in gametes (n) is 23.
4. **Dog**: Dogs have a diploid number of 78 (2n = 78), so the number in gametes (n) is 39.

Now, putting these numbers together, the series representing the number of chromosomes in the gametes for a mosquito, corn, human, and dog is:

**3 (mosquito), 10 (corn), 23 (human), 39 (dog)**.

Since none of the choices you provided exactly match this list, it appears there’s a mismatch. The closest interpretation from the possible answers is:

**3, 10, 23, 39** is the correct answer.

The answer is **3, 10, 23, 39**.