7.5 study guide Flashcards
(9 cards)
1
Q
nondisjunction
A
in meiosis I, the failure of homologous chromosomes to separate. In meiosis II, failure of sister chromatids to separate.
2
Q
deletion
A
a chromosomal abnormality where a segment of a chromosome it removed
3
Q
duplication
A
a chromosomal abnormality where a segment of a chromosome is copied
4
Q
inversion
A
a chromosomal abnormality where a segment of a chromosome changes order/direction
5
Q
translocation
A
a chromosomal abnormality where a segment of a chromosome is transferred to another non-homologous chromosome
6
Q
sex chromosome
A
X and Y chromosome
7
Q
autosome
A
numbered chromosomes other than X and Y
8
Q
monosomy
A
result of nondisjunction where only one of a chromosome pair is received
9
Q
trisomy
A
result of nondisjunction where a
