DNA Structure and Gene Expression Questions and Answers
Select the characteristics that researchers suspected the genetic material would have prior to the
discovery that the genetic material was DNA Answer ability to store information
accurate replication
passes from one generation to the next
In the 1940s, scientists had concluded that genetic material was most likely either _____ or
_____- Answer DNA or proteins
which of the following are components of a nucleotide? Answer a 5-carbon sugar
a phosphate
a nitrogen-containing base
select the findings of Erwin Chargaff regarding DNA composition Answer A=T
G=C
pyrimidines = purines
Rosaline Franklin's X-ray diffraction photograph demonstrated that DNA Answer was a double
helix
Why did early molecular geneticists know that the genetic material needed to be a stable
molecule? Answer So it could be replicated accurately.
So it could be passed from one generation to the next.
During the 1940s, scientists considered which two molecules most likely to be genetic material?
Answer protein
DNA
DNA is composed of units called _____, each of which contains a phosphate group, a 5-carbon
sugar, and one of 4 nitrogen-containing bases Answer nucleotides
, erwin chargaff determined that the number of _____ like guanine and adenine always equal the
number of ____ like cytosine and thymine Answer purines
pyrimidines
which scientist's X-ray diffraction data helped to demonstrate the double helix structure of DNA
Answer Rosalind Franklin
Which of the following DNA bases are purines Answer guanine
adenine
What structure is formed when two molecular strands wind around each other in a double spiral?
Answer a double helix
Which of the following are components of a nucleotide? Answer 5-carbon sugar
phosphate
nitrogen-containing base
which of the following DNA bases are pyrimidines? Answer thymine
cytosine
true of false : a purine base normally pairs with a pyrimidine base Answer true
Which of the following contain proper complementary DNA base pairs? Answer C G
AT
Which of the following are the two new nucleotides that have been created by the company
Synthorx? Answer x
Y
he new synthetic nucleotides have been inserted into the E.coli bacteria to increase the number of
_______ ________ they can produce. Answer amino acid
Select the characteristics that researchers suspected the genetic material would have prior to the
discovery that the genetic material was DNA Answer ability to store information
accurate replication
passes from one generation to the next
In the 1940s, scientists had concluded that genetic material was most likely either _____ or
_____- Answer DNA or proteins
which of the following are components of a nucleotide? Answer a 5-carbon sugar
a phosphate
a nitrogen-containing base
select the findings of Erwin Chargaff regarding DNA composition Answer A=T
G=C
pyrimidines = purines
Rosaline Franklin's X-ray diffraction photograph demonstrated that DNA Answer was a double
helix
Why did early molecular geneticists know that the genetic material needed to be a stable
molecule? Answer So it could be replicated accurately.
So it could be passed from one generation to the next.
During the 1940s, scientists considered which two molecules most likely to be genetic material?
Answer protein
DNA
DNA is composed of units called _____, each of which contains a phosphate group, a 5-carbon
sugar, and one of 4 nitrogen-containing bases Answer nucleotides
, erwin chargaff determined that the number of _____ like guanine and adenine always equal the
number of ____ like cytosine and thymine Answer purines
pyrimidines
which scientist's X-ray diffraction data helped to demonstrate the double helix structure of DNA
Answer Rosalind Franklin
Which of the following DNA bases are purines Answer guanine
adenine
What structure is formed when two molecular strands wind around each other in a double spiral?
Answer a double helix
Which of the following are components of a nucleotide? Answer 5-carbon sugar
phosphate
nitrogen-containing base
which of the following DNA bases are pyrimidines? Answer thymine
cytosine
true of false : a purine base normally pairs with a pyrimidine base Answer true
Which of the following contain proper complementary DNA base pairs? Answer C G
AT
Which of the following are the two new nucleotides that have been created by the company
Synthorx? Answer x
Y
he new synthetic nucleotides have been inserted into the E.coli bacteria to increase the number of
_______ ________ they can produce. Answer amino acid
