LS Bio 2.2

What is the primary role of proteins in gene expression?

• To provide energy for cellular processes

• To regulate the transcription and translation of genes

• To store genetic information

• To transport oxygen in the blood

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NGSS.HS-LS1-1

Which process involves the conversion of a stem cell into a specialized cell type?

• Gene expression

• Cellular differentiation

• Protein synthesis

• DNA replication

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NGSS.HS-LS1-4

What is a key characteristic of specialized cells?

• They all have the same function

• They perform specific functions unique to their type

• They are identical to stem cells

• They cannot divide

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NGSS.HS-LS1-2

NGSS.HS-LS1-4

Which of the following is a potential cause of uncontrolled cell growth?

• Proper gene regulation

• Mutations in genes that control cell division

• Normal cellular differentiation

• Balanced protein synthesis

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NGSS.HS-LS1-1

NGSS.HS-LS1-4

How do mutations impact proteins and their functions?

• They always enhance protein function

• They can alter the protein structure, potentially disrupting its function

• They have no effect on proteins

• They only affect the protein's color

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NGSS.HS-LS1-1

NGSS.HS-LS3-2

Explain how proteins can influence gene expression.

• Proteins can bind to DNA and either promote or inhibit the transcription of specific genes.

• Proteins can change the sequence of DNA.

• Proteins can convert DNA into RNA.

• Proteins can replicate DNA.

Describe the process of cellular differentiation.

• It is the process by which cells become identical to each other.

• It is the process by which unspecialized cells develop into specialized cells with distinct functions.

• It is the process of cell division.

• It is the process of DNA replication.

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NGSS.HS-LS1-4

What role do mutations play in the development of cancer?

• Mutations always prevent cancer

• Mutations can lead to uncontrolled cell growth by disrupting normal cell cycle regulation

• Mutations have no role in cancer

• Mutations only affect non-coding regions of DNA

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NGSS.HS-LS1-4

NGSS.HS-LS3-2

How does the structure of a protein relate to its function in gene expression?

• The structure of a protein is unrelated to its function

• The three-dimensional shape of a protein determines how it interacts with DNA and other molecules

• Proteins have no structure

• Proteins are only involved in energy production

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NGSS.HS-LS1-1

Analyze the impact of a mutation in a gene that codes for a regulatory protein.

• The mutation will have no effect on the cell

• The mutation could lead to improper regulation of gene expression, affecting cell function and growth

• The mutation will only affect the protein's color

• The mutation will enhance the protein's function

Tags

NGSS.HS-LS1-1