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Understanding Differential Gene Expression

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Understanding Differential Gene Expression

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Questions and Answers

What is the primary reason for limiting gene expression in somatic cells?

To prevent unwanted cell differentiation

To increase the complexity of multicellular organisms

To facilitate stem cell growth

To ensure the correct proteins are produced (correct)

What is the term used to describe an active gene that is currently being expressed in a cell?

Dormant gene

Recessive gene

Silenced gene

Expressed gene (correct)

Why is differential gene expression important during the development of a fetus?

To increase the number of stem cells

To activate specific genes for various cell types (correct)

To ensure identical cell copies are made

To prevent stem cell growth

What is the role of messenger RNA (mRNA) in gene expression?

Transporting DNA code to the ribosome for protein synthesis Signup and view all the answers

What would be the consequence if skin cells started expressing liver proteins according to the text?

Growth of a new liver on the skin Signup and view all the answers

Which of the following cells carry an identical copy of DNA?

Somatic cells (except B lymphocytes) Signup and view all the answers

What is the process that allows somatic cells to transform into specialized cell types?

Cellular differentiation Signup and view all the answers

What does the term 'differential gene expression' refer to?

The process of activating different genes in a cell Signup and view all the answers

Which of the following is true about stem cells?

They are undifferentiated cells with the potential to become any cell type Signup and view all the answers

What is the result of a stem cell undergoing cellular differentiation?

It becomes a somatic cell with a specific phenotype Signup and view all the answers

What is the purpose of differential gene expression analysis?

To determine which genes are actively being expressed in cells Signup and view all the answers

In the context of differential gene expression, what is the role of a test group?

To be subjected to a certain treatment or condition being studied Signup and view all the answers

Why is it important for samples in differential gene expression analysis to have replicates?

To divide each sample for testing in multiple separate parts Signup and view all the answers

Which statement best describes somatic cells' approach to unused genes?

Somatic cells keep unused genes unaltered. Signup and view all the answers

How does differential gene expression analysis contribute to understanding cancer causes?

By quantifying and comparing gene expression in cancerous and non-cancerous cells Signup and view all the answers