DNA Structure
Base Pairing Rules
DNA Replication
Transcription
Translation
100
The monomer of DNA is a...
Nucleotide
100
In DNA, Adenine pairs with...
Thymine
100
Where in a cell does DNA replication occur?
In the nucleus
100
What molecule is created from transcription?
mRNA
100
What is the organelle where proteins are made?
Ribosome
200
The blue shape in the image represents this part of a nucleotide making up DNA...
The sugar deoxyribose
200
In DNA, cytosine pairs with
Guanine
200
What is the enzyme that breaks (cuts) the hydrogen bonds between nitrogen bases?
Helicase
200
What is the role, or job of mRNA?
To copy the genetic code from DNA and take it out of the nucleus
200
How many nitrogen bases make a codon?
3
300
What make up the "rungs" of the double helix molecule? (What is in the middle?)
Nitrogen bases
300
What base pair is found in RNA but not DNA?
Uracil
300
What does the enzyme DNA polymerase do in DNA replication?
Adds nitrogen bases to create the new strand of DNA.
300
If a DNA molecule has the nitrogen base sequence:
T C C A G T G
What will be the sequence of mRNA that is transcribed from this section of DNA?
A G G U C A C
300
What is the role of tRNA?
To bring amino acids to the ribosome
400
The backbone of both DNA and RNA is made up of alternating...
Sugar and phosphate
400
If a DNA molecule has the nitrogen base sequence:
G C G T T A C
What will be the sequence of the other strand of that DNA molecule?
C G C A A T G
400
Because DNA replication keeps one strand of the parent DNA, it is referred to as...
semi-conservative
400
Why is it important that mRNA take the genetic code out of the nucleus?
DNA cannot leave the nucleus.
400
What is the amino acid that goes with the start codon (AUG)?
Methionine
500
Who took x-ray diffraction photos of the DNA molecule?
Rosalind Franklin
500
If a DNA molecule is 40 percent thymine, what will be the percentage of the other 3 bases?
40% adenine
10% cytosine
10% guanine
500
What is the enzyme that "glues" together the Okazaki fragments on the lagging strand during DNA replication?
Ligase
500
What is the enzyme that adds nitrogen bases in transcription to create mRNA?
RNA polymerase
500
If the anticodon on tRNA is CGA, what amino acid will it carry?
Alanine