Chapter 9 Flashcards
What is a transposon?
And what are the two kinds of classes?
Can jump around =mobile
Class I: retrotransposons (LINES, SINES)
Class II: transposons, usually inactive.
How long is mitochondrial DNA?
~16500 bp
What is a sensecodon?
?
What is the D-loop?
Special structure with three strands of DNA
What is tandemely repeated ncDNA? What are the three different kinds?
Non coding DNA
Satellites, minisatellites and microsatellites
How long are CNVs?
From 1 kbp to several megabases in size
What are pseudogenes
Defective copies of functional gene
Whatis a functional pseudogene called?
Retrogene retropseudogene
Where are satellite DNA, mini and macro mostly found in the genome respectively?
- centromers
- telomers
- all of genome
What are the sub-types of class II transposons?
LTR (long terminal repeat)
Non-LTR
Where does micro RNA play a role in the central dogma?
Translation
Whatare thethree kinds of rRNA and what are their function?
18S, 25S, 5S
Responsible for proteins.
Ribosome is a ribozyme
Interacts with tRNA and mRNA. Needs to be modified before it is active
What is snoRNA
Small nucleolar RNA
Guide methylation
What is the function of RNAse P RNA?
Removes/cleaves the 5’leader element from tRNA
