concepts and definitions Flashcards
1
Q
stages of genetic variation
A
prophase I - crossing over
anaphase I - independent assortment of chromosomes
anaphase II - independent assortment of chromatids
2
Q
homologous chromosomes
A
a pair of chromosomes that contain the same genes but not necessarily the same alleles
3
Q
genes
A
a section of DNA (at a particular locus) coding for a polypeptide or for a functional RNA
4
Q
allele
A
an alternative form of a gene
5
Q
locus
A
the position / location of a gene on a chromosome
6
Q
genome
A
all the DNA in an individual
7
Q
proteome
A
all the proteins that are produced in a particular cell at a particular time
8
Q
nondisjuction
A
anaphase I or anaphase II - goes wrong then too many or too few chromosomes
