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WorksheetsLS.12 DNA Structure & History
Total questions: 20
Worksheet time: 40mins
Name
Class
Date
1.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
ribosome
d)
nucleus
2.
What does DNA stand for?
a)
Deoxyribonucleic acid
b)
Denitrogenous acid
c)
Deribonucleic acid
d)
Diribonucleic acid
3.
Which 2 molecules form the sides (backbone) of the DNA ladder?
a)
deoxyribose sugar and adenine
b)
deoxyribose sugar and a hydrogen bond
c)
deoxyribose sugar and the nucleus
d)
deoxyribose sugar and phosphate
4.
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
5.
In DNA, Adenine bonds with ______________.
a)
Guanine
b)
Thymine
c)
Cytosine
d)
Adenine
6.
Guanine bonds with ______________.
a)
Adenine
b)
Guanine
c)
Cytosine
d)
Thymine
7.
What are the three components of a nucleotide?
a)
sugar, hydrogen, nitrogen base
b)
sugar, oxygen, nitrogen base
c)
sugar, phosphate, nitrogen base
d)
sugar, phosphate, protein
8.
What are the 4 nitrogen bases?
a)
adenine, thymine, cytoplasm, and guanine
b)
adenine, thymine cytosine, and guanine
c)
adenine, thymine, cytosine, and gylcerol
d)
adenine, thymine, cytosine, and glucose
9.
Which of the following best describes a DNA molecule?
a)
double helix
b)
contains ribose
c)
made of amino acids
d)
contains Uracil
10.
Which shows the correct complementary base pairing for DNA?
a)
C-A, T-G
b)
A-G, C-T
c)
C-G, U-A
d)
T-A, G-C
11.
Who is responsible for producing this image?
a)
Francis Crick
b)
James Watson
c)
Rosalind Franklin
d)
Watson and Crick
12.
How did Rosalind Franklin's photo 51 affect the 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
13.
What was Watson and Crick's main scientific accomplishment?
a)
Building the first accurate model of DNA
b)
Isolating strains of pneumonia causing bacteria
c)
Determining base pairing rules
d)
Discovering the process of genetic transformation
14.
Who was responsible for the model shown?
a)
Oswald Avery
b)
Watson and Crick
c)
Erwin Chargaff
d)
Rosalind Franklin
15.
Which sugar is contained in DNA
a)
Dextrose
b)
Ribose
c)
Deoxyribose
d)
Glucose
16.
Watson and Crick were the first to suggest that DNA is _____
a)
a short molecule
b)
the shape of a double helix
c)
a protein molecule
d)
the genetic material
17.
The twisted ladder shape of DNA is known as a
a)
Double Helix
b)
Triple Helix
c)
Single Helix
d)
Triple Helix
18.
The main goal of the Human Genome Project is to
a)
identify the unique parts of each person's DNA.
b)
identify genes responsible for human diseases.
c)
identify genes responsible for human behavior.
d)
determine the entire sequence of human DNA.
19.
Who is the "Father of Modern Genetics"?
a)
Charles Darwin
b)
Gregor Mendel
c)
Robert Hooke
d)
Edward O Wilson
20.
How many genes were discovered by the Human Genome Project?
a)
5,000-10,000
b)
10,000-15,000
c)
20,000-25,000
d)
50,000-55,000
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