For each of the following sentences, fill in the blanks with the best word or ph
ID: 64928 • Letter: F
Question
For each of the following sentences, fill in the blanks with the best word or phrase selected from the list below. Not all words or phrases will be used; each word or phrase may be used more than once.
The four phases of the cell cycle, in order, are G1, __________________, __________________, and __________________. A cell contains the most DNA after __________________ phase of the cell cycle. A cell is smallest in size after __________________ phase of the cell cycle. Growth occurs in __________________, __________________, and __________________ phases of the cell cycle. A cell does not enter mitosis until it has completed __________________ synthesis.
DNA M protein
G1 nucleotide S
G2 organelle.
__________________________________________________________________________
In which phase of the cell cycle do cells check to determine whether the DNA is fully and correctly replicated?
A. at the transition between G1 and S
B. when cells enter G0
C. during M
D. at the end of G2.
_____________________________________________________________________________
Which of the following statements about the cell cycle is false?
A. Once a cell decides to enter the cell cycle, the time from start to finish is the same in all eukaryotic cells.
B. An unfavorable environment can cause cells to arrest in G1.
C. A cell has more DNA during G2 than it did in G1.
D. The cleavage divisions that occur in an early embryo have short G1 and G2 phases..
Explanation / Answer
The four phases of the cell cycle, in order, are G1, S, G2, and M. A cell contains the most DNA after S phase of the cell cycle. A cell is smallest in size after M phase of the cell cycle. Growth occurs in G1, S, and G2 phases of the cell cycle. A cell does not enter mitosis until it has completed DNA synthesis.
D. At the end of G2 phase of the cell cycle, the cells check to determine whether the DNA is fully and correctly replicated.
A. Once a cell decides to enter the cell cycle, the time from start to finish is the same in all eukaryotic cells.
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