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;
31 Cards in this Set
- Front
- Back
name 2 functional rnas
|
tRNA and rRna
|
|
True or false
Functional rna makes up the majority of the cells rna |
true
|
|
Why is functional rna the majority of the cells rna
|
1. more stable
2. large amount of transcription is to make func rna |
|
Translation of rna begins at its?
|
5' end
|
|
True or false
In prokaryotes, transcription and translation occur in the same place. |
true
|
|
A protein is a ____________ made up of monomers
|
polymer
|
|
a polypeptide is formed by
|
removal of water between aa to form peptide bonds
|
|
an amino end of an aa links with a __________________ of another aa to form a peptide bond
|
carboxyl end
|
|
Primary structure of proteins is
|
linear seq of aa
|
|
secondary struct of proteins is?
|
spec shape taken by protein by folding.
|
|
secondary structure of proteins is due to
|
hydrogen bonding, electrostatic forces, van de waals forces.
|
|
name 2 common types of secondary structures
|
alpha helix and beta sheets
|
|
the folding of alpha helices and beta sheets makes up the?
|
tertiary structure of the protein
|
|
2 proteins folded together make up the?
|
quaternary structure.
|
|
heterodimer
|
differ types of polypeptides
|
|
homodimer
|
4 struct betw ident units of proteins
|
|
name diff types of prot struct
|
globular proteins
fibrous proteins |
|
name an example of a globular protein
|
enzymes
antibodies |
|
name example of a fibrous protein
|
hair, muscle
|
|
how is the shape of a protein determined?
|
1. its primary aa seq
2. condit in the cell |
|
Enzymes have _________________ where the reactions take place
|
active sites
|
|
domains of a protein?
|
functional regions of proteins.
|
|
example of a domain?
|
domain of a protein that acts to bind the protein to dna
|
|
Beadle and Tatum came up with which theory?
|
one gene to one enzyme hypothesis
|
|
Yanofsky demonstrated ___________________, the correspondence bewt the linear seq of the gene and of the polypeptide
|
colinearity
|
|
True or false
The linear seq of nucleotides in a gene determ the linear seq of aa in a protein. |
true
|
|
a triplet will encode how many possible different proteins
|
4X4X4= 64 proteins
|
|
the mutugen proflavin acts by?
|
adding or deleting just one nucleotide pair.
|
|
If you have an insertion and then a deletion in a gene what can happen?
|
you can still have a mostly functional gene because you have preserved most of the reading frame.
|
|
The fact that 3 insertions or three deletions can preserve wild type shows what?
|
that the reading frame consists of a codon of 3 letters.
|
|
what does it mean that the genetic code is degenerate?
|
that each triplet encode an aa and aa's are encode for by more than one triplet
|