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Trisomy 21 Project Activity Review
Test Description: Review questions of trisomy 21, presented to staff
Instructions: Answer all questions to get your test result.
1) The scientific term for the genetic disorder down syndrome.
A
trisomy 18
B
trisomy 21
C
trisomy 13
D
trisomy 12
2) The term that describes a fault in the distribution of chromosomes during meiosis.
A
nonmeiosis
B
nondisjuction
C
nondistribution
D
nonseparation
3) The chances of a parent having a child born with trisomy 21 ____.
A
none of the above
B
is consistent with age and all parents have the same chances
C
increases as the parents age increase
D
decreases as the parents age increases
4) A pattern made of chromosomes based on their size and the genes that they carry.
A
karaoke
B
chromosomal spread
C
karyotype
D
genetic distribution
5) A healthy male will have a chromosomal number of ____.
A
46 XX
B
46 XY
C
47 XY
D
47 XX
6) A female that is diagnosed with trisomy 21 will have the chromosomal number of ___.
A
46 XY
B
46 XX
C
47 XY
D
47 XX
7) If nondisjunction occurs during anaphase I,____ cells will have _____ and _____cells will have _____.
A
3, extra chromosomes, 1, missing chromosomes
B
2, extra chromosomes, 2, missing chromosomes
C
1, extra chromosomes, 3, missing chromosomes
D
2, normal number of chromosomes, 2, missing chromosomes
8) If nondisjunction occurs during meiosis, the daughter cells before meiosis II will result in ___.
A
None of the above
B
One daughter cell will have extra chromosomes and one daughter cell will have missing chromosomes
C
Both cells will have a equal number of chromosomes
D
One daughter cell will have a normal number of chromosomes and one daughter cell will have missing chromosomes
9) Trisomy 21 means
A
none of the above
B
Human with 21 chromosomes
C
Human with three of the 21 chromosome
D
Human with 21 of the 3 chromsome
10) A way to diagnose a fetus for trisomy 21.
A
analyze amphibious fluid
B
analyze amniotic fluid
C
analyze an ultrasound
D
analyze cells
11) Women can reduce the risk of a trisomy 21 baby by _____.
A
increasing the amount of citric acid in their diet
B
increasing the amount of vitamin D in their diet
C
increasing the amount of vitamin C in their diet
D
increasing the amount of folic acid in their diet
*select an answer for all questions
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