Biology exam (all tests) questions with well verified answers
When cells leave the cell cycle, they exit during G1 phase and then enter G0 phase, a resting
period. Most normal cells can leave G0 phase and reenter the cell cycle at G1 phase before
entering S phase. Cancer cells are different because they cannot enter G0 phase and are likely to
do which of the fowling?
A. fail to complete S phase
B. mutate during G1 phase
C. repeat cell cycle continuously
D. die after completing mitosis
C
Which of these must occur during the S phase of the cell cycle so that two daughter cells can be
produced during M phase?
A. the DNA must be replicated
B. the chromosomes must be joined
C. the cytoplasm must be separated
D. the cell membrane must be expanded
E. all of the above
A.
What is the complementary model that represents this one?
CAGCCATC
GTCGGTAG
Deoxyribose, cytosine, and a phosphate group
ATGCTTACA
Which of the following nucleotide sequence complements the section DNA molecule above?
A. 3' TAGGAATTT 5'
B. 3' ATGCTTACA 5'
C. 3' TACGAATCT 5'
, D. 3' TACGAATGT 5'
D
prophase
Which of the following activities occurs in the G1 phase?
A. growth of the cell
B. replication of the DNA
C. formation of the mitotic spindle
D. breakdown of the nuclear membrane
A
A strand of DNA consists of thousands of smaller, repeating units know as -
A. lipids
B. amino acids
C. nucleotides
D. polysaccharides
E. fatty acids
C
The cell cycle is the -
A. a series of events that cells go through as they grow and divide
B. period of time between the birth and the death of a cell
C. time from prophase until cytokinesis
D. time it takes for one cell to undergo mitosis
E. final cycle of a washing machine
A
chromatids
Before a cell goes through mitosis, which process must be carried out by the DNA in the
nucleus?
When cells leave the cell cycle, they exit during G1 phase and then enter G0 phase, a resting
period. Most normal cells can leave G0 phase and reenter the cell cycle at G1 phase before
entering S phase. Cancer cells are different because they cannot enter G0 phase and are likely to
do which of the fowling?
A. fail to complete S phase
B. mutate during G1 phase
C. repeat cell cycle continuously
D. die after completing mitosis
C
Which of these must occur during the S phase of the cell cycle so that two daughter cells can be
produced during M phase?
A. the DNA must be replicated
B. the chromosomes must be joined
C. the cytoplasm must be separated
D. the cell membrane must be expanded
E. all of the above
A.
What is the complementary model that represents this one?
CAGCCATC
GTCGGTAG
Deoxyribose, cytosine, and a phosphate group
ATGCTTACA
Which of the following nucleotide sequence complements the section DNA molecule above?
A. 3' TAGGAATTT 5'
B. 3' ATGCTTACA 5'
C. 3' TACGAATCT 5'
, D. 3' TACGAATGT 5'
D
prophase
Which of the following activities occurs in the G1 phase?
A. growth of the cell
B. replication of the DNA
C. formation of the mitotic spindle
D. breakdown of the nuclear membrane
A
A strand of DNA consists of thousands of smaller, repeating units know as -
A. lipids
B. amino acids
C. nucleotides
D. polysaccharides
E. fatty acids
C
The cell cycle is the -
A. a series of events that cells go through as they grow and divide
B. period of time between the birth and the death of a cell
C. time from prophase until cytokinesis
D. time it takes for one cell to undergo mitosis
E. final cycle of a washing machine
A
chromatids
Before a cell goes through mitosis, which process must be carried out by the DNA in the
nucleus?
