lecture 8 polyploidy Flashcards
1
Q
definition of aneuploidy
A
the loss or gain of
one or a few chromosomes
relative to the diploid
2
Q
definition of polyploidy
A
possession of multiple entire sets of chromosomes
e.g self fertilization tetraploid
3
Q
other chromosomal aberrations
A
loss, gain or rearrangement of parts of chromosomes
4
Q
autopolyploid
A
same species
5
Q
allopolyploid
A
different species
6
Q
deletion
A
removes a chromosome segment
e. g cri du chat lejeune syndrome
e. g williams-beuren syndrome
7
Q
duplication
A
repeats a sequence
8
Q
inversion
A
reverses a segment within a chromosome
9
Q
translocation (reciprocal and non-reciprocal)
A
when various parts of a chromosome are shifted to another, non-homologous chromosome
e. g Duchenne muscular dystrophy
e. g Familial down syndrome
