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What is a gene
A bases sequences that codes for a polypeptide
What is a locus
A particular location on a DNA molecule
What is an allele?
Different form of the same gene
What does degenerate mean?
Each amino acid can be coded for by more than one triplet
What does non-overlapping mean?
Each base sequence is read only once
What does universal mean?
Each triplet codes for the same amino acid in all organisms
What is an intron?
Non coding sequence
What are coding sequences called?
Exons
Which amino acid is coded for first in all polypeptides
Methionine
Which protein is DNA coiled around?
Histone
What is the combination of DNA and a histone called?
Nucleosome
State one difference between prokaroytic and eukaryotic DNA
Histones, length, size
What is different about a pair a homologous chromosomes?
The alleles they carry
What is the same about a pair of homologous chromosomes
The genes they carry
Which type of RNA is found in the nucleus?
mRNA / pre mRNA
How does the stability of mRNA compare to tRNA
mRNA less stable
