Which of the Following Is a Silicate Mineral with a Single-Chained

question 27

Multiple Choice

Which of the following is a silicate mineral with a single-chained structure?

• A)olivine
• B)pyroxene
• C)amphibole
• D)mica

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Definitions:

General Transcriptional Machinery

A complex of proteins and enzymes in cells necessary for the transcription of DNA into RNA, involving various transcription factors and RNA polymerase.

Regulatory Proteins

Proteins that control the expression of genes, the activity of enzymes, and the flow of signals in cells, maintaining homeostasis and coordinating biological processes.

Promoter

A region of DNA that initiates transcription of a particular gene, responsible for the regulation of gene expression.

Repressible Genes

Genes whose expression is decreased or stopped in response to the presence of a specific molecule, usually an end product of a metabolic pathway.