Karyotype 8 Question Preview (ID: 51348)


This Game Aims To Review Karyotype Course For Grade 8 Students. TEACHERS: click here for quick copy question ID numbers.

Karyotype is a document that shows (indicates):
a) The number of chromosomes in different species
b) The sex of the individuals
c) The chromosomal abnormalities
d) All choices are correct

Chromosomes are present in the:
a) Nucleus of cells
b) Cytoplasm of cells
c) Outside the nucleus
d) None of the choices.

A trisomy 21 boy has:
a) 45 autosomal chromosomes
b) XY sex chromosomes
c) 47 chromosomes( all chromosomes)
d) All choices are correct

A klinfelter individual has:
a) XX sex chromosomes
b) 46 chromosomes
c) All choices are correct
d) XXY sex chromosomes

The chromosomal formula of a Down syndrome boy is:
a) 47,XY,+21
b) 47,XX,+21
c) 47,XXY
d) 45,XY,-21

The chromosomal formula of a turner syndrome female:
a) 46,XX
b) 47,XX,+21
c) 45,X
d) 45,XX,-21

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

The sterility of some individuals may be caused by:
a) The presence of an extra sex chromosome
b) Missing a sex chromosome
c) An abnormality in the sex chromosomes
d) All choices are correct

Two twins may have:
a) The same number of chromosomes
b) Different number of chromosomes
c) Same or different sex
d) All choices are correct

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

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