DNA Flashcards
1
Q
What is DNA in prokaryotic cells like?
A
Shorter, form a circle and don’t have chromosomes
2
Q
What is DNA in eukaryotic cells like?
A
Longer, are linear and occur in association with proteins called histones to form chromosomes
3
Q
The DNA in chromosomes is held by what?
A
Histones
4
Q
What is the structure of DNA?
A
A double helix
5
Q
What is a homologous pair?
A
2 chromosomes that carry the same genes but not necessarily the same alleles of the genes
6
Q
What is an allele?
A
One of a number of alternative forms of a gene
7
Q
What does each allele have?
A
A different base sequence therefore they have a different amino acid sequence so it produces a different polypeptide
