Honors Bio Test review Flashcards
What does the word mutate mean?
To change
What is DNA?
DNA is in every human and stands for Deoxynucleuic acid
What are the 3 parts of a nucleotide
Phosphate group, Pentosugar , and a Nitrogen base.
Types of substitution
The 3 types of Substituions
Deletion, Insertion, and Substitution
What is Deletion?
When part of the DNA sequence is deleted.
What is Insertion?
When another part is added to the sequence
What is Substition?
When a certain part of the sequence is replaced by another part.
What are the building blocks of DNA?
Amino acids are the building blocks for DNA
Mutations that produce changes in a single gene are called ____
Point Mutations
What are the 3 stop codons?
UGA, UAA, and UAG
What is the “backbone” of DNA made up of? Deoxyribose and phosphate group
Deoxyribose and a phosphate group
Mutations that produce changes in whole chromosomes are known as _____
Chromosomal Mutations
The double helix structure of DNA was discovered by 4 scientists - what are their names and what was the year?
Crick, Watson, Franklin, and Wilkins 1953
What are urines? How many rings do they have?
Guanine and Adenine have 2 rings
What are pyrimidines? How many rings do they have?
Thymine and Cytosine have 1 ring
