If a Rock Started with 1,000 Atoms of a Parent

question 33

Multiple Choice

If a rock started with 1,000 atoms of a parent but now contains 250 atoms,how many half-lives have passed?

• A)0.25 half-lives
• B)0.5 half-lives
• C)2 half-lives
• D)4 half-lives
• E)There is no way to tell.

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Definitions:

RNA Synthesis

The process of transcribing RNA molecules from DNA templates, a crucial step in gene expression.

Transcription

The synthesis of RNA from a DNA template.

Polypeptide Chain

A series of amino acids linked together by peptide bonds, forming part of or the whole primary structure of a protein.

mRNA

Messenger RNA, a type of RNA that carries genetic information from DNA to the ribosome, where it serves as a template for protein synthesis.