What happens during prophase?
O
A. The chromatids are pulled apart.
O BA new nucleus forms around each copy of DNA.
O
C. Spindle fibers attach to the chromatids.
O
D. The mitotic spindle forms.

D. The mitonic spindle forms

dna is made up of six smaller molecules -- a five carbon sugar called deoxyribose, a phosphate molecule and four different nitrogenous bases (adenine, thymine, cytosine and guanine).

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.