To discuss:
How heredity and health are affected not only by genetic changes but also by epigenetic changes.
Introduction:
Heredity is passed from one generation to the next through both genetic and non-genetic (epigenetic) inheritance. There are several mechanisms that alter the expression of a gene apart from a mutation. Alternation of a gene expression without changing the DNA bases is known as epigenetic modifications such as DNA methylation, histone modification, and miRNA expression. DNA methylation (addition of a methyl group to cytosine bases of DNA sequence) inhibits gene expression, which is a normal biological process involved in human development. All the genes are not active in every cell; only few genes are active and others are inhibited by DNA methylation and other mechanisms based on the cell types (example, embryonic cells).
![Check Mark](/static/check-mark.png)
Want to see the full answer?
Check out a sample textbook solution![Blurred answer](/static/blurred-answer.jpg)
Chapter 4 Solutions
A&P UNITY AND FUNCTION ACCESS
- Briefly explain why each of the following statements is false, or reword it to make it true8. All mutations result in the production of defective proteins and are therefore harmful.arrow_forwardp53 is a transcription factor. true or falsearrow_forwardthe purpuse of mRNA in regard to producing proteinarrow_forward
- Briefly explain why each of the following statements is false, or reword it to make it true7. All human DNA codes for the synthesis of proteins.arrow_forwardWhy Embryonic stem cells research is the most controversial topic in Medical research in this country today?arrow_forwardWhat transcriptional repressors do.arrow_forward
- Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305967359/9781305967359_smallCoverImage.gif)
![Text book image](https://www.bartleby.com/isbn_cover_images/9781305112100/9781305112100_smallCoverImage.gif)