DNA
A DNA molecule has the following sequence:
GCG ATG TAG
Identify the complementary strand of DNA.
CGC TAC ATC
Groups of 3 bases on tRNA are called
Anti-codons
What type of mutation changes only ONE nucleotide?
Point mutation
Each three part molecule composed of a phosphate group, a sugar and a nitrogen base is called a...
Nucleotide
DNA making an exact copy of itself
Replication
What is a segment of DNA that codes for a protein called?
A gene
Structurally, RNA differs from DNA because...
it is single stranded
What is a change in the base sequence that does NOT alter the amino acid that is made?
Silent Mutation
What is a similarity between DNA and RNA?
Made of nucleotides, share the bases Adenine, Guanine, and Cytosine, essential for protein synthesis, etc.
Found between DNA nitrogen bases
Hydrogen Bonds
How can we describe the structure of DNA?
Double Helix
What sugar is found in RNA?
Ribose
A mutation that changes the DNA by adding or deleting a nucleotide is called a:
Frameshift Mutation
____________ and ___________ are credited with discovering the structure of DNA. However, they could not have done it without the contributions of ____________.
Watson and Crick ; Rosalind Franklin
Groups of 3 bases on the mRNA molecule
Codon
DNA replication occurs during which part of the cell cycle?
S Phase (Synthesis) of Interphase
Which enzyme is responsible for adding the new nucleotides onto the mRNA strand in transcription?
RNA Polymerase
What is a frameshift mutation that ADDS a nucleotide called?
Insertion
Many amino acids linked and folded together is a...
Protein
Carries DNA code from the nucleus to a ribosome
mRNA
What are the 4 nitrogen bases of DNA?
Adenine, Cytosine, Guanine, Thymine
What are the 4 nitrogen bases of DNA?
Uracil, Guanine, Cytosine, and Adenine
What type of mutation is it when part of one chromosome is transferred to another chromosome?
Translocation
A student develops a model to show how DNA and proteins are related. Which sequence correctly completes the model to show the protein synthesis process?
DNA Sequence → ? → ? → ? → Protein
tRNA sequence → mRNA sequence → amino acid sequence
mRNA being made from DNA as the template
Transcription