Lecture 4

Give one function of proteins?

Answer explanation

•Act as catalysts•

Transport other molecules

•Store other molecules

•Provide mechanical support

•Provide immune protection

•Generate movement

•Transmit nerve impulses

•Control cell growth and differentiation

Bacteria use _______ to regulate gene expression in response to their nutrient requirements, and other cell needs/processes.

• TATA box

• Repressor

• Operon

• Promoter

What promotes the expression of specific genes by binding to enhancer regions?

• Activator proteins

• Operons

• Repressors

• Inducer proteins

Which is not true of Epigenome and gene expression?

• Modifications in chromatin

• Differ between tissue types

• Can be inherited

• All modifications are irreversible

TRUE or FALSE: Disruption of epigeonome is a fundamental mechanism in cancer and clinical trials have shown DNA methylation inhibitors have been reported as molecular indicators.

• TRUE

• FALSE