Understand how multiple layers of gene regulation shape cell function and development. Explore DNA and chromatin modifications, transcriptional regulation, and the influence of transcription factors.

Key points: Gene regulation is the process of controlling which genes in a cell's DNA are expressed (used to make a functional product such as a protein). Different cells in a multicellular organism may …

Activity: How can gene mutations help us understand the formation of flowers? In this hands-on activity, students will investigate how genetic mutations affect flower development by analyzing images of …

DNA helps make us who we are, but how exactly does it work? In this unit, we'll examine the nitty gritty of replication, transcription, and translation, and learn how seemingly small mutations can have a big …

It states that genetic information flows primarily from DNA to RNA to protein, or directly from RNA to protein. This process is crucial for gene expression and is fundamental to understanding how genetic …

Prokaryotes rely on gene regulation for environmental adaptation, while eukaryotes have more complex interactions and a nuclear envelope for added control. Understanding gene expression is crucial for …

Unit 5: Gene expression and regulation 400 possible mastery points Mastered Proficient

Summary: DNA is divided up into functional units called genes, which may specify polypeptides (proteins and protein subunits) or functional RNAs (such as tRNAs and rRNAs). Information from a gene is …

In the sections below, we’ll discuss some common types of gene regulation that occur after an RNA transcript has been made.

But even the simplest bacterium has a complex task when it comes to gene regulation! The bacteria in your gut or between your teeth have genomes that contain thousands of different genes.