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