DNA and RNA Flashcards
1
Q
What is a genome
A
complete set of genes in a cell
2
Q
define a gene
A
genes are sections of DNA that code for polypeptides
3
Q
what holds the nucleotides together
A
phosphodiester bonds
4
Q
give two differeances in structure of RNA and DNA
A
DNA double strand
RNA single strand
DNA longer polypetides
RNA shorter polypeptides
5
Q
give two other structural differences between RNA and DNA
A
RNA - contanes ribose sugar
contains uricil
DNA- contains deoxyribose sugar
contains thymine
6
Q
how are the complementary base pairs held together by
A
hydrogen bonds
7
Q
what doues uricil replase
A
thymine
8
Q
what is an allele
A
one of a number of alternative forms of gene
