Dna Flashcards
(37 cards)
What are the steps of DNA replication?
- ) 1 double helix inside nucleus
- ) DNA unzips - helicase
- ) DNA polymerase puts nucleus together
- ) semi conservative
What does semi conservative mean
1 old, 1 new strand in double helix
Found in nucleus
Double helix
Thymine instead of uracil
Deoxyribose
DNA
Found in ribose Single strand Uracil instead of thymine Ribose Trna, mRNA, rRNA.
RNA
Why are proteins important
The protein shape determines your traits
Why is it a problem that DNA is too big for the nucleus
Proteins are made of ribosomes.
What is transcription
When DNA makes a copy of its self and sends a message called mRNA to the ribosomes
Is there thymine in RNA
Nope
Process that reads or translates the mRNA to build a protein
Translation
mRNA is read by what
tRNA
Sequence of three nucleotides
Codons
Process that occurs during the cell cycle where DNA is copied or duplicated
DNA replication
What is a nucleotide
A compound consisted of a nucleoside linked to a phosphate group
Summarise the process of replication
Enzymes unzip the double helix
DNA polymerase makes a copy
Summarise the process of transcription
mRNA sends a message to the ribosomes by linking the codon ontology ribosome
Summarise the process of translation
mRNA is read by the tRNA and the tRNA leaves a nucleic acid. And a protein is made
What two scientist made found out the structure of DNA
Watson and crick
Define mutagen
Changes in DNA that change the protein that is produced
What disease is caused by mutagens
HPV
Describe insertions
When extra base pairs are added.
Describe deletion
When base pairs are removed
Describe substitutions
When a base pair replaces another
What mutation falls under
Point mutation
Substitution
Which mutations fall under
Frameshift mutation
Deletion and insertion
