To determine the number of chromosomes in each gamete for the organisms listed, we need to know the diploid (2n) chromosome counts for a mosquito, corn, a human, and a dog. The number of chromosomes in gametes (sperm and egg cells) is half of the diploid number, which is referred to as haploid (n).
Here are the typical diploid numbers:
- Mosquito (commonly Aedes aegypti): 6 chromosomes, so gametes (n) = 3.
- Corn (Zea mays): 20 chromosomes, so gametes (n) = 10.
- Human: 46 chromosomes, so gametes (n) = 23.
- Dog: 78 chromosomes, so gametes (n) = 39.
Now we list them:
- Mosquito: 3 (gametes)
- Corn: 10 (gametes)
- Human: 23 (gametes)
- Dog: 39 (gametes)
Based on the options you provided, it looks like the correct series that matches is 3, 10, 23, 39.
However, the number for corn should actually reflect half of 20, which is 10. If we reconsider the options, we could interpret the initial question as checking against the total diploid numbers instead.
From what I provided, none of the options perfectly align with standard gamete counts for those organisms listed, but if presented with the choices, 3, 10, 23, and 39 matches the expected number of chromosomes seen in other contexts (if we're only looking for those who match before deducing possible minor changes).
So, assuming my earlier conclusion where the formulation's accuracy were n expressed:
- Correct order for the associated question steps to mention. This makes the option (3, 10, 23, 39) as my earlier note showcased - identifying gametic origin firstly.