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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
The chromosomal abnormalities
B
All choices are correct
C
The sex of the individuals
D
The number of chromosomes in different species
2) Chromosomes are present in the:
A
Nucleus of cells
B
Cytoplasm of cells
C
None of the choices.
D
Outside the nucleus
3) A trisomy 21 boy has:
A
XY sex chromosomes
B
47 chromosomes( all chromosomes)
C
All choices are correct
D
45 autosomal chromosomes
4) A klinfelter individual has:
A
46 chromosomes
B
XX sex chromosomes
C
All choices are correct
D
XXY sex chromosomes
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,X
B
45,XX,-21
C
47,XX,+21
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
20
C
30
D
19
8) The sterility of some individuals may be caused by:
A
Missing a sex chromosome
B
An abnormality in the sex chromosomes
C
All choices are correct
D
The presence of an extra sex chromosome
9) Two twins may have:
A
All choices are correct
B
The same number of chromosomes
C
Same or different sex
D
Different number of chromosomes
10) The number of chromosomes in two normal human being is:
A
Different
B
The same
C
None of the choices
D
May be the same or different
*select an answer for all questions
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