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Karyotype 8
Test Description: This game aims to review Karyotype course for Grade 8 students.
Instructions: Answer all questions to get your test result.
1) Karyotype is a document that shows (indicates):
A
All choices are correct
B
The chromosomal abnormalities
C
The number of chromosomes in different species
D
The sex of the individuals
2) Chromosomes are present in the:
A
Outside the nucleus
B
Nucleus of cells
C
Cytoplasm of cells
D
None of the choices.
3) A trisomy 21 boy has:
A
XY sex chromosomes
B
All choices are correct
C
47 chromosomes( all chromosomes)
D
45 autosomal chromosomes
4) A klinfelter individual has:
A
46 chromosomes
B
XX sex chromosomes
C
XXY sex chromosomes
D
All choices are correct
5) The chromosomal formula of a Down syndrome boy is:
A
47,XX,+21
B
45,XY,-21
C
47,XXY
D
47,XY,+21
6) The chromosomal formula of a turner syndrome female:
A
45,XX,-21
B
47,XX,+21
C
45,X
D
46,XX
7) Knowing that the number of chromosomes (2n) in a cat is 38, then the value of n is:
A
16
B
30
C
20
D
19
8) The sterility of some individuals may be caused by:
A
An abnormality in the sex chromosomes
B
The presence of an extra sex chromosome
C
All choices are correct
D
Missing a sex chromosome
9) Two twins may have:
A
Different number of chromosomes
B
The same number of chromosomes
C
All choices are correct
D
Same or different sex
10) The number of chromosomes in two normal human being is:
A
The same
B
Different
C
May be the same or different
D
None of the choices
*select an answer for all questions
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