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How DNA Works
Test Description: How DNA works
Instructions: Answer all questions to get your test result.
1) The code for a given amino acid consists of ___ bases
A
two
B
three
C
one
D
four
2) What are Watson and Crick known for?
A
Making models of DNA
B
Taking X-ray pictures of DNA
C
Studying the amounts of each base
D
Discovering genes
3) Which of the following shows the correct pairing of bases?
A
A - T
B
G - A
C
A - C
D
T - G
4) What are the 3 things that make up a nucleotide?
A
a sugar, a phosphate, and a base
B
an amino acid, a base, and a protein
C
a gene, an allele, and a trait
D
chromosomes and genes
5) What is the matching strand of DNA if the sequence is TAGTCA?
A
GTAGAT
B
ATGAGT
C
GACAGT
D
ATCAGT
6) Rosalind Franklin created images that suggested DNA had a(n) ____shape.
A
circular
B
X
C
tubular
D
spiral
7) The rungs of the DNA ladder are made of___.
A
alternating sugar and phosphates
B
sugar molecules
C
phosphate molecules
D
nucleotide bases
8) The human body is made of many ______, which are made of amino acids.
A
traits
B
genes
C
bases
D
proteins
9) What type of mutation? Original DNA: AAACCCGGG Mutated: AAACACGGG
A
deletion
B
insertion
C
substitution
D
omission
10) If a mutation occurs in the DNA of ____cells, it can be passed from one generation to the next.
A
heart
B
muscle
C
brain
D
sex
*select an answer for all questions
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