Which of the Following Causes Down Syndrome

question 6

Multiple Choice

Which of the following causes Down syndrome?

• A)The presence of an extra chromosome on the 21^st pair.
• B)The presence of only 22 pairs of chromosomes.
• C)The presence of more than 23 pairs of chromosomes.
• D)The presence of an extra chromosome on the 23^rd pair.

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Definitions:

Ethene

A colorless flammable gas (C2H4), the simplest alkene, acting as a fundamental building block in the petrochemical industry.

pKa

A quantitative measure of the strength of an acid in solution, reflecting its dissociation into a proton and an anion.

Bell Shaped Distribution

A type of distribution which is symmetric and has its peak in the middle, commonly associated with the normal distribution.

Standard Deviation

A measure of the dispersion or variability in a dataset, indicating how much the values in the set deviate from the mean.