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WorksheetsDNA/Mutations Quiz
Total questions: 12
Worksheet time: 12mins
DNA is replicated (duplicated) in a _______ fashion.
semi-conservative (1 parent strand, 1 new strand)
fully conservative (both parent strands)
not conservative (2 new strands)
Cytosine pairs with _______.
cytosine
guanine
adenine
thymine
Adenine pairs with ______.
adenine
guanine
thymine
cytosine
A key difference with RNA is that RNA uses _______ instead of thymine.
adenine
uracil
guanine
cytosine
How is RNA different from DNA?
RNA is one strand; DNA is two strands
RNA is two strands; DNA is one strand
Both are two strands
Both are one strands
Who discovered the structural model of DNA as a double helix?
Watson and Click
Walson and Click
Watson and Crick
Walson and Crick
What is the structural shape of DNA?
single helix
double helix
triple helix
quadruple helix
DNA is made up of small repeating subunits called:
amino acids
nucleotides
fatty acid chains
carbohydrates
The nitrogenous base pairs (A, T, C, G) are held together by _____ bonds.
ionic
covalent
van der Waals
hydrogen
A nucleotide consists of a phosphate, deoxyribose sugar, and _____.
a nitrogenous base
an oxygenated base
a hydrogenous base
a fluorinated base
What does DNA stand for?
deosyribednucleus acid
deoxymebonucleic acid
deoxyribonucleic acid
ribonucleic acid
What enzyme unwinds the DNA strands to prepare for replication?
DNA polymerase
helicase
amylase
topoisomerase
