Bsc 1005 Sickle Cell Pt 2 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Which of the following statements is true? - CORRECT ANSWER - Within DNA, the
percentage of adenine is the same as the percentage of thymine and the percentage of guanine is
the same as the percentage of cytosine.
Rosalind Franklin used X-ray crystallography to determine that DNA is - CORRECT
ANSWER - helical in structure and composed of many repeating elements.
How did Watson and Crick contribute to the understanding of DNA structure? - CORRECT
ANSWER - Watson and Crick took the contributions of other researchers and synthesized
it, creating a working model of DNA structure.
Select all of the following that best describe the structure of DNA. - CORRECT
ANSWER - Backbone composed of alternating deoxyribose sugar and phosphate groups
Inner rungs composed of nitrogen-containing bases, including A, T, C, and G
Double stranded, helical structure
Which of the following lists all the components found within all DNA nucleotides? - CORRECT
ANSWER - Deoxyribose sugar,
a phosphate group,
nitrogen-containing base
, DNA has complementary base pairing, meaning - CORRECT ANSWER - adenine always
pairs with thymine and cytosine always pairs with guanine.
How did Rosalind Franklin contribute to the understanding of DNA structure? - CORRECT
ANSWER - Franklin used X-ray crystallography to determine that DNA was helical and
repetitive in structure.
Which of the following statements best states the contributions of Watson and Crick to the
discovery of DNA structure? - CORRECT ANSWER - Watson and Crick concluded that
sugar and phosphate make up the helical strands of the molecule and nitrogen bases are located
on the interior of the molecule.
Which of the following best describes the Watson and Crick model of DNA? - CORRECT
ANSWER - DNA is a double helix with a backbone of alternating sugars and phosphate
molecules and an interior core of nitrogenous bases that are bonded together in a complementary
fashion.
Which of the following statements best describes how the strands of DNA are oriented in relation
to each other? - CORRECT ANSWER - DNA is anti-parallel, so one strand runs 5' to 3'
and its complementary strand runs 3' to 5'.
DNA strands are complementary to each other. This means - CORRECT ANSWER - for
every adenine on one strand, there is a thymine bound to it on the opposing strand. For every
cytosine on one strand, there is a guanine bound to it on the opposing strand.
Which of the following best describes the anti-parallel structure of DNA? - CORRECT
ANSWER - One strand runs 5' to 3' and its complementary strand runs 3' to 5'.
Within DNA, adenine pairs with _________________ and guanine pairs with
___________________. - CORRECT ANSWER - thymine
cytosine
ACTUAL Exam Questions and CORRECT
Answers
Which of the following statements is true? - CORRECT ANSWER - Within DNA, the
percentage of adenine is the same as the percentage of thymine and the percentage of guanine is
the same as the percentage of cytosine.
Rosalind Franklin used X-ray crystallography to determine that DNA is - CORRECT
ANSWER - helical in structure and composed of many repeating elements.
How did Watson and Crick contribute to the understanding of DNA structure? - CORRECT
ANSWER - Watson and Crick took the contributions of other researchers and synthesized
it, creating a working model of DNA structure.
Select all of the following that best describe the structure of DNA. - CORRECT
ANSWER - Backbone composed of alternating deoxyribose sugar and phosphate groups
Inner rungs composed of nitrogen-containing bases, including A, T, C, and G
Double stranded, helical structure
Which of the following lists all the components found within all DNA nucleotides? - CORRECT
ANSWER - Deoxyribose sugar,
a phosphate group,
nitrogen-containing base
, DNA has complementary base pairing, meaning - CORRECT ANSWER - adenine always
pairs with thymine and cytosine always pairs with guanine.
How did Rosalind Franklin contribute to the understanding of DNA structure? - CORRECT
ANSWER - Franklin used X-ray crystallography to determine that DNA was helical and
repetitive in structure.
Which of the following statements best states the contributions of Watson and Crick to the
discovery of DNA structure? - CORRECT ANSWER - Watson and Crick concluded that
sugar and phosphate make up the helical strands of the molecule and nitrogen bases are located
on the interior of the molecule.
Which of the following best describes the Watson and Crick model of DNA? - CORRECT
ANSWER - DNA is a double helix with a backbone of alternating sugars and phosphate
molecules and an interior core of nitrogenous bases that are bonded together in a complementary
fashion.
Which of the following statements best describes how the strands of DNA are oriented in relation
to each other? - CORRECT ANSWER - DNA is anti-parallel, so one strand runs 5' to 3'
and its complementary strand runs 3' to 5'.
DNA strands are complementary to each other. This means - CORRECT ANSWER - for
every adenine on one strand, there is a thymine bound to it on the opposing strand. For every
cytosine on one strand, there is a guanine bound to it on the opposing strand.
Which of the following best describes the anti-parallel structure of DNA? - CORRECT
ANSWER - One strand runs 5' to 3' and its complementary strand runs 3' to 5'.
Within DNA, adenine pairs with _________________ and guanine pairs with
___________________. - CORRECT ANSWER - thymine
cytosine
