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Worksheets9B dna structure
Total questions: 19
Worksheet time: 3mins
Name
Class
Date
1.
DNA is an acronym for _____
a)
Diphosphorus Nucleic Acid
b)
Ribose Nucleic Acid
c)
Deoxyribonucleic Acid
d)
Deoxyribonucleic Acetate
2.
The twisted ladder shape of DNA is known as a
a)
Double Helix
b)
Triple Helix
c)
Single Helix
d)
Triple Helix
3.
Why is DNA important?
a)
it is very small and very complicated
b)
it's in everything
c)
it serves as the blueprint for traits of all living things
d)
because we eat it every day for energy
4.
What is the significance of the sequence (order) of the Nitrogen Bases in DNA?
a)
The order of the Nitrogen Bases determines the number of chromosomes present in an organism.
b)
The order of the Nitrogen Bases determines the traits that an organism will possess (have).
c)
The order of the Nitrogen Bases determines the gender of an organism.
d)
The order of the Nitrogen Bases determines whether an organism is abiotic biotic.
5.
Name this structure
a)
double helix
b)
nucelotide
c)
twisted ladder
d)
hydrogen bond
6.
Which 2 molecules forms the sides (backbone) of the DNA ladder?
a)
deoxyribose and adenine
b)
deoxyribose and a hydrogen bond
c)
sugar and the nucleus
d)
deoxyribose (sugar) and phosphate
7.
Nitrogenous bases are joined by which type of bond?
a)
polar bonds
b)
ionic bonds
c)
covalent bonds
d)
hydrogen bonds
8.
According to Chargaff's rule, Cytosine always pair with
a)
Adenine
b)
Uracil
c)
Thymine
d)
Gaunine
9.
If there is 37% guanine how much cytosine is there?
a)
77%
b)
47%
c)
37%
d)
57%
10.
What is the complement to the DNA strand below:
5'-ATGCCAT-3'
5'-ATGCCAT-3'
a)
5'-TACGGTA-3'
b)
3'-TACGGTA-5'
c)
3'-ATGGCAT-5'
d)
5'-ATGGCAT-3'
11.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
ribosome
d)
nucleus
12.
The scientists who created an accurate model of the DNA double helix and won a Nobel Prize for this discovery
a)
Watson & Crick
b)
Watson, Crick, and Wilkins
c)
Wilkins & Crick
d)
Watson, Crick, Wilkins, and Franklin
13.
Who is responsible for producing this image?
a)
Francis Crick
b)
James Watson
c)
Rosalind Franklin
d)
Watson and Crick
14.
How did Rosalind Franklin's photo 51 affect th work of Watson and Crick?
a)
It was used to determine the physical structure of DNA
b)
It was used to identify the four bases that make up DNA
c)
It was used to determine the theory of independent assortment
d)
It was used to show DNA was the molecule of inheritance
15.
Why didn't Rosalind Franklin at least receive a part of the Nobel Prize for the discovery of DNA?
a)
She was deemed unworthy.
b)
Winners have to be alive in order to be awarded the prize
c)
She did not receive enough nominations.
d)
The award was already to be awarded to Watson, Crick and Wilkins.
16.
Who was responsible for determining the structure of DNA?
a)
Watson and Crick
b)
Chargaff
c)
Rosalind Franklin
d)
All of the above
17.
Which scientist(s) determined that viruses contain DNA?
a)
Avery & McLeod
b)
Watson & Crick
c)
Griffith & Franklin
d)
Hershey & Chase
18.
How did Hershey & Chase “tag” the bacteriophages?
a)
Track DNA by radiation concentrations
b)
Infection
c)
Blending
d)
Centrifiguration
19.
How were all of the components of the experiment later separated?
a)
Used a centrifuge
b)
Blending
c)
Infection
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