3 - CHROMOSOMAL DEVELOPMENT DISORDERS Flashcards
1
Q
No X chromosome
A
not able to develop
2
Q
XO females
A
Turner Syndome
- no Y chromosome
- only 1 X
- phenotypically female
- no gametes (as gametes only from second cell division which can’t take place with only 1 chromosome)
- no functional ovaries
- no (or little) hormone production in puberty
- no sexual maturation
3
Q
multiple Y
+
no X (YY0, YYY0…)
A
not able to develop
4
Q
multiple Y
+
one X (XYY, XYYY…)
A
male phenotype
5
Q
multiple X
+
no Y (XXX, XXXX…)
A
female phenotype
6
Q
multiple X
+
one Y (XXY, XXXY…)
A
male phenotype (Klinefelter Syndrome)
7
Q
statement:
the more extra chromosomes, the higher the likelihood of physical and cognitive defects
A
-
8
Q
statement:
a chromosomal male mammal could develop at least a partial uterus if the Y chromosome lacks the SRY region as it carries the TDF gene
A
-
