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CU_9-8_Karyotype/ Heredity
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 9 students.
Instructions: Answer all questions to get your test result.
1) The normal human karyotype contains:
A
none of the choices
B
23 chromosomes
C
46 chromosomes
D
44 chromosomes
2) Indicate the origin of each chromosome present in each pair.
A
One maternal and one paternal
B
Both are maternal origin
C
all choices are correct
D
Both are from the father (paternal)
3) Indicate the number of pairs of autosomal chromosomes in a normal human karyotype
A
23 chromosomes
B
22 chromosomes
C
44 chromosomes
D
46 chromosomes
4) The presence of two homologous sex chromosomes (XX) means that the individual is a
A
normal female
B
normal male
C
abnormal male
D
abnormal female
5) The presence of Y sex chromosome means that the sex of the individual is:
A
female
B
none of the choices
C
male
D
male with feminine characteristics
6) The number of chromosomes in the karyotypes of two normal brothers is the same, since:
A
normal humans has the same number of chromosomes
B
Both are for normal humans
C
all choices are correct
D
same species have same number of chromosomes
7) A normal man has:
A
non of the choices
B
Two Y sex chromosomes
C
Two X sex chromosomes
D
One X sex chromosome and one Y sex chromosome
8) Abnormal human karyotype may have:
A
missing a chromosome(s)
B
extra sex chromosome(s)
C
all choices are correct
D
extra autosomal chromosome(s)
9) The chromosomes are found in the:
A
all choices are correct
B
cytoplasm of the cells
C
outside the nucleus of the cells
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 information
D
transfer the genetic hereditary traits to the fetus
*select an answer for all questions
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