Repetitive DNA Part 1 Flashcards Preview

GN 421 > Repetitive DNA Part 1 > Flashcards

Flashcards in Repetitive DNA Part 1 Deck (13):
1

2 classes of repetitive DNA

- tandem repeats
- interspersed repeats

2

classes of tandem repeats

- satellites - large tandem arrays
- multiple copy RNA-coding genes
- multiple copy protein-coding genes

3

classes of interspersed repeats

- DNA transposons
- LTR retrotransposons
- non-LTR retrotransposons

4

multiple copy RNA coding genes

- genes whose final product is RNA

5

LTR

- long terminal repeats

6

tandem repeats

- an array of a particular sequence repeated right next to one another in the genome

7

array

- collection of tandem repeats

8

interspersed repeats

- an array of a particular sequence scattered throughout the genome

9

4 categories of satellite

- micro satellite - 2-5 bp
- mini satellite - ~15 bp
- satellite - 5-100 bp
- megasatellite - 4-10 kb

10

VNTR

- variable number tandem repeats

11

total bp added to genome formula

- number of repeats * bp/repeat
- unique DNA*2

12

even if arrays are scattered throughout the genome

- the repeats are considered to be in tandem

13

what DNA sequence must hair pair with primers in PCR reaction to characterize VNTRs

- mini satellites