Sand foxes are diploid organisms with n=18 Part A. In a non-dividing skin cell:

Question

Sand foxes are diploid organisms with n=18

Part A. In a non-dividing skin cell:
What is the total number of chromosomes?
Number of pairs of homologous chromosomes?
Number of pairs of sister chromotids?
Is it diploid or haploid?

Part B. in a cell in prophase of mitosis:
What is the total number of chromosomes?
Number of pairs of homologous chromosomes?
Number of pairs of sister chromotids?
Is it diploid or haploid?
Daughter cell diploid or haploid?

Part C. Cell in prophase meiosis 2:
What is the total number of chromosomes?
Number of pairs of homologous chromosomes?
Number of pairs of sister chromotids?
Is it diploid or haploid?
Daughter cell diploid or haploid?

Part D. A mature sperm cell:
What is the total number of chromosomes?
Number of pairs of homologous chromosomes?
Number of pairs of sister chromotids?
Is it diploid or haploid?

Explanation / Answer

Part A.

Since skin cell is diploid, the total number of chromosomes is 18*2=36

Number of pairs of homologous chromosomes is 18

Number of sister chromatids is 36*2=72

Yes, it is diploid.

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