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Chromosome quiz

How much do you know about chromosomes? Many people make the mistake of thinking that chromosomes are fixed and unchanging, but there are many different exceptions to the norms. For instance, did you know that one in less than every thousand people are born with an XXY chromosome configuration? Test what you know, and perhaps learn something new.
Unless otherwise stated, questions pertain to human chromosomes.
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Last updated: July 5, 2016
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First submittedJuly 5, 2016
Times taken79
Average score35.7%
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The number of chromosomes humans normally have
46
This pair of sets from each parent is called the
Diploid number
The number of chromosomes gametes normally have
23
This individual set from one parent is called the
Haploid number
The full set and appearance of chromosomes is called a
Karyotype
The condition of having an irregular number of chromosomes is called
Aneuploidy
An extra chromosome on pair 21 may cause this condition
Downs Syndrome
An extra chromosome on pair 18 may cause this condition
Edward's Syndrome
The condition of having an XXY or XXXY set of chromosomes is called
Klinefelter Syndrome
The condition of having just one X chromosome is called
Turner Syndrome
A microscopic photograph of someone's chromosomes is called a
Karyogram
More densely packed chromosome material is called
Heterochromatin
Less densely packed chromosome material is called
Euchromatin
The protein molecules that condense chromatin into nucleosomes
Histones
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