subject

Epigenetics

Biology ⇒ Genetics and Heredity

Epigenetics starts at 11 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Epigenetics. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 12
Describe how epigenetic changes can be involved in the development of identical twins with different susceptibilities to diseases.
Describe how epigenetic modifications can contribute to cell differentiation during development.
Describe how epigenetic therapy might be used to treat diseases.
Describe how histone acetylation affects gene expression.
Describe the process of genomic imprinting.
Describe the role of non-coding RNAs in epigenetic regulation.
Explain how environmental factors such as diet can influence epigenetic changes.
Explain the difference between genetic and epigenetic changes.
DNA methylation typically occurs at which nucleotide base? (1) Adenine (2) Cytosine (3) Guanine (4) Thymine
Which enzyme is responsible for removing acetyl groups from histones? (1) DNA methyltransferase (2) Histone acetyltransferase (3) Histone deacetylase (4) RNA polymerase
Which of the following best describes the effect of DNA methylation on gene expression? (1) Increases gene expression (2) Decreases gene expression (3) Has no effect (4) Randomly changes gene expression
Which of the following best explains why epigenetic changes are important in stem cells? (1) They prevent cell division (2) They allow stem cells to differentiate into various cell types (3) They cause mutations (4) They increase cell death
Fill in the blank: Epigenetic changes that occur in __________ cells are not passed to offspring.
Fill in the blank: Epigenetic changes that occur in __________ cells can be passed to offspring.
Fill in the blank: Epigenetic modifications can be __________ from one generation to the next.
Fill in the blank: The addition of a methyl group to DNA is called __________.
Epigenetic changes can be influenced by environmental factors. True or False?
True or False: All epigenetic changes are permanent.
True or False: Epigenetic changes are always beneficial to the organism.
True or False: Epigenetic changes can be reversed.