In which phase of mitosis does the nuclear envelope re-form around each set of chromosomes, and the chromosomes begin to de-condense?

In animal cells, cytokinesis is accomplished by which of the following mechanisms?

In the image depicting DNA replication, what is the enzyme labelled C? 

If 20% of the bases in a DNA molecule are thymine, what percentage of the bases are cytosine?

What type of bond links the sugar of one nucleotide to the phosphate group of the next nucleotide in a DNA strand, forming the backbone of the DNA molecule?

Which term best describes the chromosomal rearrangement shown (where 'Ref' is the reference or 'normal' chromosome arrangement)?

What type of mutation is pictured in the associated image?

The image of the pedigree depicts what type of inheritance?

The mutation from UGU to UGA is:

Which term best describes the chromosomal rearrangement shown (where 'Ref' is the reference or 'normal' chromosome arrangement)?