11.2 - The Structure of DNA(20pts.)

Passage
•
Science
•
9th - 12th Grade
•
Medium
Standards-aligned
Spenser Chakerian
Used 24+ times
FREE Resource
11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A nucleotide of DNA may contain adenine, guanine, cytosine, or thymine.
What is each of these components?
5-Carbon Sugar
Nitrogenous Base
Phosphate Group
Nucleic Acid
Answer explanation
The nitrogenous base is the component of a nucleotide of DNA that can be adenine, guanine, cytosine, or thymine.
Tags
HS-LS1-1
HS-LS3-1
2.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
The experiments and data are crucial for understanding DNA ___
Tags
HS-LS1-1
HS-LS3-1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of information does the data table contain?
The percentages of bases found in DNA of different Organisms.
The percentages of bases found in Proteins of different Organisms.
The types of Organisms that have DNA.
The percentage of sugar-phosphate in the backbone of DNA.
Tags
HS-LS1-1
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chargaff's rules of base pairing are explained by which structural feature
of DNA?
Each strand of DNA contains a phosphate and sugar backbone.
The nucleotides of DNA may be arranged in a wide variety of sequences.
DNA is triple stranded, and covalent bonds between identical nucleotides
hold the two strands together.
DNA is double stranded, and hydrogen bonds between base pairs hold the
two strands together.
Tags
HS-LS1-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement did Chargaff conclude based on these data?
(Note: A letter in brackets, such as [A] or [C], refers to the concentration of one of the
nitrogenous bases.)
in DNA molecules,
[T] > [A] > [G] > [C]
in DNA molecules,
[T] = [A] = [G] = [C]
in DNA molecules,
[T] = [A] and [G] = [C]
in DNA molecules,
[T] < [A] = [G] > [C]
Answer explanation
Equal numbers of A and T mean that those are equal.
[AND]
Equal numbers of C and G mean that those are equal.
Tags
HS-LS1-1
HS-LS3-1
6.
DRAG AND DROP QUESTION
1 min • 3 pts
If a species has [35 percent adenine] in its DNA, what is the percentage of the other three bases?
[15% - (a) ]
[ (b) - Thymine]
[ (c) - Cytosine]
35%
Guanine
15%
Thymine
Uracil
Answer explanation
The species has 35% adenine in its DNA, so the remaining percentages must be distributed among the other three bases. Therefore, the percentages are 35% Guanine, 15% Thymine, and the remaining percentage for Cytosine.
Tags
HS-LS3-1
HS-LS1-1
Learning Target 1
7.
CLASSIFICATION QUESTION
3 mins • 4 pts
Groups:
(a) Adenine
,
(b) Thymine
,
(c) Guanine
,
(d) Cytosine
Hydrogen bonds with Thymine in DNA.
Hydrogen bonds with Adenine in DNA
Hydrogen bonds with Guanine in DNA
Hydrogen bonds with Cytosine in DNA
Answer explanation
A=T
C=G
Tags
HS-LS3-1
HS-LS1-1
Learning Target 1
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