EXAM QUESTIONS WITH CORRECT ANSWERS
2. Prophase (mitosis)ANSWER nuclear envelope begins to dissolve, Chromatin condense into a "x" sha ped chromo-
somes (X's)
3. Metaphase (mitosis)ANSWER chromosomes line up on metaphase plate
4. Anaphase (Mitosis)ANSWER cell elongates and sister chromatids are pulled apart toward the poles
5. Telophase (mitosis)ANSWER a cleavage furrow pinches the two daughter cells apart (cytokinesis). Each daughter
cells left with 46 chromosomes
6. Which of the following describe a codon? (circle all that apply)ANSWER A. Codon is a sequence
of three nucleotides that code for a specific amino acid.
B. A STOP codon signals to STOP protein synthesis
C. A START codon initiates protein synthesis and the nucleotide sequence for a start codon is AUG
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D. A codon is a protein that codes for a gene.
AnswersANSWER A,B,C
7. Which of the following describes the independent variable in the experiment? (Use
the following information given)
A group of people in an experiment test out the effects of a new drug, "X". Group 1
given a placebo and reports having no side effects. (they are given none of the
medication "X".)
Group 2 is given a full dose of the medication and reports having headaches. Group 3
given half the full dose of medication and reports having trouble sleeping.ANSWER A. Trouble
sleeping is the independent variable.
B. "Trouble sleeping" and "headaches" is the independent variable
C. The amount of medication given is the independent variable; "placebo" "full dose" and "half dose" of medication are the
independent variables.
D. The placebo medication is the only independent variable in the experiment
AnswerANSWER C
Dependent variableANSWER The outcome of the independent variable( ExampleANSWER if half dose is independent then dependent
would be trouble sleeping
8. What illustaration represents the correct nucleotide base pairing in DNA?ANSWER
AANSWER Adenine, Uracil, Guanine, Thymine
BANSWER Adenine, Thymine, Guanine, Cytosine
AnswerANSWER B (there is no thymine in RNA)
(adenine pairs with thymine, guanine pairs with cytosine in DNA. adenine pairs with uracil, guanine pairs with cytosine
in RNA)
9. A phenotype is a characteristic trait that is observable. Phenotype is the
expression of a genotype.
TRUE OR FALSEANSWER TRUE
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2. Prophase (mitosis)ANSWER nuclear envelope begins to dissolve, Chromatin condense into a "x" sha ped chromo-
somes (X's)
3. Metaphase (mitosis)ANSWER chromosomes line up on metaphase plate
4. Anaphase (Mitosis)ANSWER cell elongates and sister chromatids are pulled apart toward the poles
5. Telophase (mitosis)ANSWER a cleavage furrow pinches the two daughter cells apart (cytokinesis). Each daughter
cells left with 46 chromosomes
6. Which of the following describe a codon? (circle all that apply)ANSWER A. Codon is a sequence
of three nucleotides that code for a specific amino acid.
B. A STOP codon signals to STOP protein synthesis
C. A START codon initiates protein synthesis and the nucleotide sequence for a start codon is AUG
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, EXAM QUESTIONS WITH CORRECT ANSWERS
D. A codon is a protein that codes for a gene.
AnswersANSWER A,B,C
7. Which of the following describes the independent variable in the experiment? (Use
the following information given)
A group of people in an experiment test out the effects of a new drug, "X". Group 1
given a placebo and reports having no side effects. (they are given none of the
medication "X".)
Group 2 is given a full dose of the medication and reports having headaches. Group 3
given half the full dose of medication and reports having trouble sleeping.ANSWER A. Trouble
sleeping is the independent variable.
B. "Trouble sleeping" and "headaches" is the independent variable
C. The amount of medication given is the independent variable; "placebo" "full dose" and "half dose" of medication are the
independent variables.
D. The placebo medication is the only independent variable in the experiment
AnswerANSWER C
Dependent variableANSWER The outcome of the independent variable( ExampleANSWER if half dose is independent then dependent
would be trouble sleeping
8. What illustaration represents the correct nucleotide base pairing in DNA?ANSWER
AANSWER Adenine, Uracil, Guanine, Thymine
BANSWER Adenine, Thymine, Guanine, Cytosine
AnswerANSWER B (there is no thymine in RNA)
(adenine pairs with thymine, guanine pairs with cytosine in DNA. adenine pairs with uracil, guanine pairs with cytosine
in RNA)
9. A phenotype is a characteristic trait that is observable. Phenotype is the
expression of a genotype.
TRUE OR FALSEANSWER TRUE
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