Biology help plz and than you?

1. Each strand of a duplicated DNA molecule is called a_____?

centrioles

centromere

chromatid

centimeter

2. what factor sets a limit on the size a cell can become?

the location of the chromosomes at teloohase

the presence or absence of asters

the number of chromosomes in the nucleus

the surface area to volume ratio

3. if a skin cell has 40 micrograms of DNA during GI, how much DNA will it have druing prophase?

20 micrograms

40 micrograms

80 micrograms

120 micrograms



4. instead of pinching into two___ divide by forming a new cell wall between daughter cells.

skin cells

animal cells

brain cells

plant cells.



your help is soooo much appreciated thank you :)
Biology help plz and than you?
1. Chromatid: a chromatid is a single stand of a chromosome. Two chromatids make the distinctive X-shaped chromosome).



2. The surface area to volume ratio



3. I believe 80 mg (but i'm not so sure on that one)



4. Plant cells (the new cell wall is called a cell plate)