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Ch 6 Life Sci
Test Description: DNA
Instructions: Answer all questions to get your test result.
1) How many bases make up code for an amino acid?
A
4
B
2
C
3
D
1
2) Genes consist of a string of nucleotides that give the cell information about how to make a specific trait.
A
false
B
true
3) Which of these is NOT a genetic mutation?
A
deletion
B
substitution
C
generation
D
insertion
4) The shape of DNA is called the
A
double helix
B
twisted ladder
C
triple helix
D
single helix
5) A mutation is a change in the number, type, or order of bases.
A
true
B
false
6) DNA is wound around
A
lipids
B
fats
C
ribosomes
D
proteins
7) Rosalind Franklin found that the amount of adenine always equals the amount of thymine in DNA.
A
false
B
true
8) A molecule that is present in all living cells and that contains the info that determines traits is called
A
RNA
B
NBA
C
CIA
D
DNA
9) The amino acids linked together in ribosomes become
A
proteins
B
DNA
C
ER
D
fats
10) There are 5 bases that a nucleotide can have.
A
false
B
true
11) A copy of a DNA segment that moves out of the nucleus and into the cytoplasm is called
A
mRNA
B
rRNA
C
tRNA
D
cDNA
12) Which is not something a nucleotide contains?
A
phosphate
B
sugar
C
base
D
sulfur
13) Adenine, thymine, cytosine, and guano are the 4 bases a nucleotide can have
A
false
B
true
14) Besides bases, what does tRNA carry?
A
fats
B
proteins
C
amino acids
D
carbohydrates
15) Who built a model of DNA?
A
Watson and Crick
B
Franklin
C
Einstein
D
Chargaff
16) When humans manipulate genes of another organism, that is called
A
genetic god-playing
B
genetic goofing off
C
genetic engineering
D
genetic fingerprinting
17) A cell organelle composed of RNA and protein that produces proteins
A
ER
B
chloroplast
C
ribosome
D
nucleus
18) Give the complementary sequence to AGTTG
A
GCATA
B
TCAAT
C
TCAAC
D
CAGGT
*select an answer for all questions
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