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3 Week Assessment Review
Test Description: 6.a, 6b, 7a
Instructions: Answer all questions to get your test result.
1) Which part of the DNA strand determines the proteins being made?
A
hydrogen bond
B
deoxyribose sugar
C
sugar-phosphate backbone
D
nucleotide bases
2) Which is the complementary strand to: AGT GCC ATG
A
TGA CGG TAC
B
TCA CGG TAC
C
ACA CGC ATC
D
TCA GGG AAC
3) What are the 3 parts of a nucleotide?
A
sugar, base, phosphate
B
thymine, guanine, deoxyribose sugar
C
sugar, hydrogen bond, base
D
hydrogen bond, glucose sugar, adenine
4) What holds base pair adenine with base thymine?
A
nitrogen bases
B
hydrogen bond
C
phosphate backbone
D
sugar backbone
5) What is the basic subunit of DNA
A
fatty acid
B
sugar
C
amino acid
D
nucleotide
6) The nitrogenous base Adenine can pair with _____.
A
Thymine
B
Guanine
C
Cytosine
D
Adenine
7) Who used a technique called X-ray diffraction to suggest that DNA is a twisted strand?
A
Crick
B
Franklin
C
Chargoff
D
Watson
8) A gene is
A
a molecule within DNA
B
a type of pants
C
a segment of DNA that codes for a protein
D
a set of homologous chromosomes
9) The twisted ladder shape of DNA is called a:
A
double membrane
B
hydrogen twist
C
double helix
D
deoxyribose flip
10) The sugar found in DNA is
A
glucose
B
equal
C
ribose
D
deoxyribose
11) All living organisms have
A
the same genetic code
B
chloroplast
C
flagella
D
mitochondria
12) Since all organisms have a the same genetic code, this allows
A
organisms to change their genetic code at random
B
all organisms the ability to fly
C
organisms to evolve quickly
D
organisms to transfer genes among each other
13) Homologous structures show proof of
A
common ancestry among related species
B
all organisms ability to fly
C
all organisms ability to swim
D
humans being most closely related to tuna fish
14) Which of the following is the best scientific evidence that mammals evolved from reptiles?
A
Similarities in the diets of extinct reptiles and modern mammals
B
Fossils that show gradual changes in skull shape from reptile-like organisms to mammal-like organisms
C
Similarities in the average lifespans of modern reptiles and modern mammals
D
Fossils of ancient reptiles and mammals that appear together in the same layers of rock
15) Fossils typically provide evidence for evolution because
A
They are millions of years old.
B
They supply good samples of RNA.
C
They show patterns of biological change
D
They exist in all types of rocks.
*select an answer for all questions
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