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Karyotype8-9
Test Description: Students must know the number of chromosomes present in their cells and its importance. This game aims to review some points of the course for Grade 8 students.
Instructions: Answer all questions to get your test result.
1) The normal human karyotype contains:
A
46 chromosomes
B
23 chromosomes
C
None of the choices
D
44 chromosomes
2) Indicate the origin of each chromosome present in each pair.
A
All choices are correct
B
Both are maternal origin
C
One maternal and one paternal
D
Both are from the father (paternal)
3) Indicate the number of autosomal chromosomes in a normal human karyotype
A
22 chromosomes
B
23 chromosomes
C
44 chromosomes
D
46 chromosomes
4) The presence of two homologous sex chromosomes (XX) means that the individual is a
A
Abnormal female
B
Abnormal male
C
normal male
D
normal female
5) The presence of Y sex chromosome means that the sex of the individual is:
A
Female
B
Male
C
None of the choices
D
male with feminine characteristics
6) The number of chromosomes in the karyotypes of two normal brothers is the same, since:
A
same species have same number of chromosomes
B
normal humans has the same number of chromosomes
C
All choices are correct
D
Both are for normal humans
7) A normal man has:
A
Two X sex chomosomes
B
None of the choices
C
One X sex chromosome and one Y sex chromosome
D
Two Y sex chromosomes
8) Abnormal human karyotype may have:
A
extra sex chromosome(s)
B
All choices are correct
C
extra autosomal chromosome(s)
D
missing a chromosome(s)
9) The chromosomes are found in the:
A
cytoplasm of the cells
B
outside the nucleus of the cells
C
All choices are correct
D
nucleus of the cells
10) The chromosomes of normal human beings:
A
may have two sister chromatids
B
All choices are correct
C
carry the genetic informations
D
transfer the genetic hereditary traits to the fetus
*select an answer for all questions
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