DNA Structure
DNA Replication
Central Dogma
Mutations
Meiosis
100
What is the complementary DNA strand of CGTATG?
GCATAC
100
When does DNA Replication occur?
During S Phase of the cell cycle
100
Where does transcription occur?
The nucleus
100
What is a mutation?
A change in the DNA sequence
100
How many cells are made with meiosis?
4 unique daughter cells
200
Name the 3 parts of the nucleotide
What is Phosphate group, 5-carbon sugar, nitrogenous bases
200
What is the first step in DNA replication?
DNA Helicase unwinds the DNA molecule
200
Where does translation occur?
Ribosomes
200
What are the two types of frameshift mutations?
Insertion and deletion
200
What is the ploidy level of the resulting cells in meiosis?
Haploid
300
What two parts of the nucleotide make up the backbone of the DNA structure?
the sugar (deoxyribose) and the phosphate group
300
What does the enzyme DNA polymerase III do?
DNA polymerase builds the complimentary strand using the original strand as a template.
300
Transcription is DNA --> ??
mRNA
300
True or false: mutations are always bad
False
300
Name the two ways that meiosis increases genetic diversity.
Crossing over and independent assortment
400
What type of bonds join base pairs on DNA?
Hydrogen Bonds
400
What is the end result of DNA Replication?
Two identical sets of DNA for each daughter cell.
400
Translation is mRNA --> ??
Amino acids
400
A mutation in which there is an early stop codon is called
Nonsense
400
When does crossing over occur?
Prophase 1
500
Based on Chargaff's Rule, if a DNA sequence contains 30% of Cytosine, how much of the sequence would be Thymine?
20%
500
Why is replication called semi-conservative?
Because each DNA molecule contains one original strand and one new strand.
500
A DNA strand has 27 nucleotides. How many amino acids will this code for?
9
500
A silent mutation is unlikely to affect a protein because
Multiple codons code for the same amino acid
500
What phase is this?
Anaphase II