Gene regulatory circuit

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/gene-regulatory-circuit

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the regulatory principles?Combinatorial binding of transcription factors, feedback loops, feed-forward loops, and signal integration
2. What is the impact on biology?Underpins cell differentiation, developmental patterning, organismal adaptation, and disease pathogenesis
3. How do transcription factors help gene regulatory circuits?Transcription factors are proteins that bind to DNA sequences called promoters or enhancers. They can activate or repress genes, deciding if a gene is turned on or off.
4. Why are non-coding RNAs important in gene regulation?Non‑coding RNAs, like microRNAs and long non‑coding RNAs, can change how stable or translated mRNAs are. They also bring in proteins that modify DNA packaging, helping fine‑tune gene activity.

Promoter: A DNA sequence located near a gene that initiates transcription by binding RNA polymerase.
Enhancer: A DNA sequence that can increase the rate of transcription of a gene, often located far from the gene itself.
Epigenetics: Heritable changes in gene expression that do not involve alterations to the underlying DNA sequence.