Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
12 Cards in this Set
- Front
- Back
|
G/C connections are more common in organisms that live
|
in extreme environments because these are more stable connections
|
|
|
In RNA, Thymine is replaced by
|
Uracil
|
|
|
The third base in a codon triplet is usually
|
redundant; can often be switched out with no effect
|
|
|
Synonymous mutation
|
Mutation in a codon does not change the amino acid it produces
|
|
|
Exons
|
coding
|
|
|
Introns
|
noncoding, spliced out
|
|
|
Point mutations
|
base-pair substitutions, insertions or deletions
|
|
|
synteny
|
genes in homologous regions of the genome of two species are lined up in the same order
|
|
|
codon usage bias
|
even though certain codons are theoretically synonymous, we often find that organisms discriminate among them
|
|
|
orthologous genes
|
homologous genes found in different species
ex. cytochrome c gene |
|
|
paralogous genes
|
results from gene duplication
|
|
|
Transition-transversion bias
|
substitutions are easier within a category
purines: A G pyrimidines: C T U |
