Cells go through a series of events known as the cell cycle as they grow and divide. During the cell cycle. a cell grows, prepares for division, and then divides to form two daughter cells. Each daughter cell then moves into a new cycle of activity, growth, and division. The cell cycle includes four phases — G1, S, G2 and M. What occurs during the S phase?

a) Cells increase in size and synthesize new proteins and organelles
b) There is intense growth and activity
c) Prepares the cell for mitosis
d) New DNA is synthesized as the chromosomes are replicated

as many times as you want

it's     c       this is a cell (b) with a nucleus (c) containing dna (a). the dna is organized into chromosomes (d). a section of the chromosome that codes for a trait is called a gene (e).

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called