What significant discovery about human chromosomes was made in 1956?

Human Chromosomes and Karyotyping Concepts

Interactive Video
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Biology, Science, History
•
9th - 12th Grade
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Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The diploid chromosome number is 46
The structure of the DNA double helix
Chromosomes are made of DNA
The presence of genes on chromosomes
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a source of DNA for karyotyping?
White blood cells
Skin fibroblasts
Red blood cells
Venous blood
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of using a mitotic inhibitor in the karyotyping process?
To culture the cells
To burst the cells
To stop cell division at metaphase
To stain the chromosomes
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which banding technique uses quinacrine dye?
G banding
Q banding
R banding
C banding
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does R banding specifically stain?
Telomeres
AT-rich regions
GC-rich regions
Centromeres
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Turner syndrome is characterized by which chromosomal anomaly?
XXY karyotype
Trisomy 21
Monosomy X
Trisomy 18
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which syndrome is associated with a trisomy of chromosome 21?
Turner syndrome
Klinefelter syndrome
Cri du chat syndrome
Down syndrome
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