Nondisjunction of Chromosomes Resulting in Aneuploidy Occurs During

question 40

Multiple Choice

Nondisjunction of chromosomes resulting in aneuploidy occurs during:

• A)anaphase of mitosis
• B)prophase I
• C)metaphase II
• D)anaphase I or II
• E)telophase I

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Definitions:

Introns

Non-coding sections of DNA or RNA that are removed before the final mRNA is formed in eukaryotic cells.

Nucleotide Sequences

The order of nucleotides in a DNA or RNA molecule that determines genetic information.

Double-stranded DNA

The normal form of DNA, consisting of two parallel strands of nucleotides wound around each other in a helix.

RNA Molecule

A nucleic acid present in all living cells. Its principal role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins.