Question

meiosis: chromosome number
determine the diploid and haploid numbers of chromosomes for each species
did you know?
cabbage, broccoli, kale, cauliflower & brussels sprouts are all the same species! they were selectively bred for their specific characteristics.
as they are the same species, they all have the same chromosome number
species|diploid number (2n)|haploid number (n)
domestic cat - felis catus|38|?
nile crocodile - crocodylus niloticus|?|16
cabbage - brassica oleracea|?|9
yellow fever mosquito - aedes aegypti|6|?
donkey - equus africanus asinus|62|?
polar bear - ursus maritimus|?|37

Explanation:

Step1: Recall the relationship

The diploid number (2n) is twice the haploid number (n). So, to find the haploid number from the diploid number, we divide by 2, and to find the diploid number from the haploid number, we multiply by 2.

Step2: Calculate for domestic cat

Given diploid number of domestic cat is 38. Haploid number $n=\frac{38}{2}=19$.

Step3: Calculate for Nile crocodile

Given haploid number of Nile crocodile is 16. Diploid number $2n = 2\times16 = 32$.

Step4: Calculate for cabbage

Given haploid number of cabbage is 9. Diploid number $2n=2\times9 = 18$.

Step5: Calculate for yellow - fever mosquito

Given diploid number of yellow - fever mosquito is 6. Haploid number $n=\frac{6}{2}=3$.

Step6: Calculate for donkey

Given diploid number of donkey is 62. Haploid number $n=\frac{62}{2}=31$.

Step7: Calculate for polar bear

Given haploid number of polar bear is 37. Diploid number $2n = 2\times37=74$.

Answer:

Species	Diploid number (2n)	Haploid number (n)
Nile crocodile - Crocodylus niloticus	32	16
Cabbage - Brassica oleracea	18	9
Yellow - fever mosquito - Aedes aegypti	6	3
Donkey - Equus africanus asinus	62	31
Polar bear - Ursus maritimus	74	37