Topic 7- Genomes and Genetic Variation

Question 1

Definition of Transposon

Answer 1

DNA sequence that can change its position within the genome

Question 2

What Transposon does

Answer 2

“jumping gene”

Question 3

Definition of Satellite DNA

Answer 3

very large arrays of tandemly repeating, non-coding DNA

Question 4

What Satellite DNA does

Answer 4

Main component of functional centromeres, and form the main structural constituent of heterochromatin.

Question 5

Definition of Polymorphic DNA

Answer 5

DNA sequences that show variation (2 or more alleles) between individuals

Question 6

What Polymorphic DNA does

Answer 6

variation (2 or more alleles) between individuals

Question 7

Definition of Tetranucleotide repeats

Answer 7

4-base repeat structure, allowing closely spaced heterozygous allelic peaks

Question 8

What Tetranucleotide repeats does

Answer 8

most commonly targeted STR loci for modern multiplexes

Question 9

Definition of phenylthiocarbamide (PTC)

Answer 9

is an organosulfur thiourea containing a phenyl ring

Question 10

What Transposon does