Epigenome and Gene Expression Quiz

What are epigenetic tags?

• A collection of hormones

• A collection of tags that tell genes whether to be on or off

• A collection of proteins

• A collection of genes

What is the function of gene regulatory proteins?

• To remove epigenetic tags

• To carry signals to the DNA

• To switch specific genes on or off

• To produce hormones

What is the role of stem cells in early embryo development?

• To form the nervous system

• To form the spinal cord

• To give rise to any type of cell

• To become glia cells

What is the purpose of reprogramming in the early embryo?

• To erase epigenetic tags

• To activate specific genes

• To become glia cells

• To form the nervous system

How do environmental factors reach the epigenome?

• Through factors released by nearby cells

• Through hormone signals

• Through direct contact signaling

• Through all of the above

What is the significance of epigenetic inheritance?

• It only happens in mammals

• It is not a real phenomenon

• It explains strange patterns of inheritance

• It goes against the idea of genetic inheritance

What happens to epigenetic tags during cell division?

• They are removed by gene regulatory proteins

• They are copied along with the DNA

• They are erased

• They are passed to the next generation

How do gene regulatory proteins recruit enzymes?

• By attaching to the DNA

• By adding epigenetic tags

• By blocking RNA polymerase

• By carrying information inside the cell

What is the role of hormones in cell signaling?

• To be released by brain chemicals and hormones

• To be taken in by nearby cells

• To travel through the blood stream and affect multiple cell types

• To trigger big changes at puberty

What is the function of proteins in cell signaling?

• To carry information inside the cell

• To add epigenetic tags

• To attach to the DNA

• To switch specific genes on or off