_____ and _____ Are the Two Birth Defects That Occur

question 146

Multiple Choice

_____ and _____ are the two birth defects that occur when the neural tube fails to close 24 days after conception.

• A) Down syndrome; Tay-Sachs disease
• B) Trisomy 13; Trisomy 18
• C) Spina bifida; anencephaly
• D) ADHD; autism

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Definitions:

LUMO

Lowest Unoccupied Molecular Orbital, which is the lowest energy molecular orbital that is currently unoccupied by electrons and can accept an electron.

Pentadienyl Anion

A negatively charged ion formed by removing a proton from a pentadiene, featuring five carbon atoms connected with alternating single and double bonds.

Bonding π Molecular Orbital

A type of molecular orbital that forms when p-orbitals overlap linearly, allowing for the delocalization of π electrons across adjacent atoms.

Allyl Anion

A negatively charged species featuring a carbon atom adjacent to a double bond, important in organic reactions.