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
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Mosquito: 6
corn: 20
human: 46
dog: 78

3, 10, 23, 39
3, 15, 22, 46
6, 20, 23, 39
6, 20, 46, 78

Answer 1

To find the number of chromosomes in each gamete for the organisms listed (mosquito, corn, human, and dog), we need to determine the haploid number of chromosomes (n) for each. The haploid number is half of the diploid number (2n).

From the provided information:
- Mosquito: 2n = 6, therefore n = 3
- Corn: 2n = 20, therefore n = 10
- Human: 2n = 46, therefore n = 23
- Dog: 2n = 78, therefore n = 39

Now, we can list the haploid (n) numbers for each organism:
- Mosquito: 3
- Corn: 10
- Human: 23
- Dog: 39

The correct series that lists these haploid numbers is: **3, 10, 23, 39**.