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BIO 201 EXAM 2 2023/2024 VERIFIED QUESTIONS AND ANSWERS GRADED A+
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BIO 201 EXAM 2 2023/2024 VERIFIED QUESTIONS AND ANSWERS GRADED A+
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BIO 201 EXAM 2 2023/2024BIO 201 EXAM 2 2023/2024 VERIFIED QUESTIONS
AND ANSWERS GRADED A+
Which of the following statements is correct?
A. transcription uses RNA for information and produces a protein
B: transcription uses DNA for information and produces a protein
C. translation uses RNA for information and produces a mRNA
D. translation uses DNA for information and produces a protein
E. none of the above are correct
E
Which of the following correctly describes the relationship between these three concepts: chromosome,
allele, and gene.
A. Each chromosome contains one allele of each of the genes on that chromosome, and each human
body cell has two of each of the 23 chromosomes.
B. Each chromosome contains one allele of each of the genes on that chromosome and each human
body cell has one of each of the 23 chromosomes.
C. Each chromosome contains two alleles of each of the genes on that chromosome and each human
body cell has one of each of the 23 chromosomes.
D. Each chromosome contains two alleles of each of the genes on that chromosome and each human
body cell has two of each of the 23 chromosomes.
A
,BIO 201 EXAM 2 2023/2024
Which of the following statements about the relationships among observations, models, hypotheses,
and explanations is the most accurate?
A. Observations, inferences, and hypotheses are combined to make predictions, which are then used to
test models. The primary goal of building models is to
develop new hypotheses about a phenomenon.
B. Observations and hypotheses are used to test explanations, which are proven to be either true or
false using models. Explanations are accepted as proven if
repeated tests give the same results.
C. Observations and inferences are combined to construct a model. Hypotheses about the model are
then developed, leading to tests. These tests can provide
evidence for or against the model.
D. Observations and inferences are used to construct explanations, which result in hypotheses. Tests of
hypotheses typically result in scientific laws of natural
phenomena.
C
Which of the following statements is TRUE?
A. a gene is generally expected to be transcribed at the same level in all of the cell types in which it is
transcribed
B. a protein is generally expected to be made in the same amounts in all of the cell types in which it is
made
C. both A and B are true
D. neither A nor B is true
D
Which of the following statements about the chromosomes of a person is CORRECT?
, BIO 201 EXAM 2 2023/2024
A. each person has two of each chromosome
B. each person inherits one of each chromosome from each parent
C. each cell of a person (other than sperm and egg cells) has the same chromosomes
D. all of the above
E. A and B but not C
D
The part of the huntingtin gene that is most critical to determining whether a person will develop
Huntington's Disease
is...
coding DNA
Which of the following statements is TRUE?
A. A Huntingtin protein with greater than or equal to 40 CAG repeats is the cause of Huntington's
Disease.
B. Different huntingtin alleles differ only in the DNA sequence of the coding part of the gene.
C. Inheriting one version of the huntingtin gene with greater than or equal to 40 CAG repeats is
insufficient to cause Huntington's Disease.
D. The gene regulatory switches of the huntingtin gene play an important role in the function of the
gene.
A. not true
bc CAG repeats are in the DNA, not the protein
B. not true bc alleles can differ in either/both their coding and noncoding parts
C. not true bc inheriting a huntingtin gene w ≥40 CAG repeats is sufficient to cause HD
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