Molecular Biology Test
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34 Terms
What are introns?
Sections of non-coding DNA
What are exons?
Sections of DNA that code for a protein
What is an amino acid?
Monomer of protein
What is a nucleotide?
Monomer of nucleic acids
What is a codon?
3 nucleotides that code for an amino acid
What is a mutation?
A permanent change in the DNA of an organism
What is a mutagen?
Something that causes mutation
What does helicase do?
Enzyme that unwinds the DNA helix
What does RNA primase do?
Lays down the primer during DNA replication
Where does DNA replication happen?
Nucleus
Where does translation happen?
Cytoplasm
When does DNA replication occur?
During S Phase
Where does transcription happen?
Nucleus
RNA, uracil binds to what?
AdenineIn
What does cytosine bind to?
Guanine
Did Rosalind Franklin use X-ray crystallography to determine DNA structure?
True
What type of bond do adenine and thymine form?
Double bond
What type of bond do cytosine and guanine form?
Triple bond
What does adenine bind to?
Thymine
What is involved in transcription and translation?
mRNA
How many nucleotides make up a codon?
3
Which organelle synthesizes protein?
Ribosome
What is the complementary strand of ATCG?
TAGC
Which enzyme unwinds the DNA helix?
Helicase
Is uracil only found in DNA?
False
Is ATGCAT a sequence of RNA?
False
Do the two DNA strands run parallel to each other?
False (they are antiparallel)
What type of replication is DNA replication?
Semi-Conservative
Which part of the nucleotide is blue?
The phosphate
Is AUCGAC a sequence of DNA?
False
What happens when a mutation occurs?
It is fixed by DNA Repair Mechanisms
What will AUCGUA bind to?
TAGCAT
Which enzyme seals the new strands of DNA back up?
Ligase
What is AUG?
Start Codon