A researcher is studying a new drug that specifically inhibits the activity of DNA ligase. Which step of DNA replication will be directly affected by this drug?

During a forensic investigation, DNA analysis reveals that a suspect’s DNA contains 25% cytosine (C). What percentage of the DNA sample would be expected to consist of thymine (T)?

Which type of diffusion occurs when molecules move across a membrane with the assistance of transport proteins?

In a molecular biology lab, researchers are studying the transcription of a specific gene. They observe that RNA polymerase is binding to the promoter region of the gene and initiating synthesis of an RNA molecule. Which of the following accurately describes the next step in the process of transcription?

Enzymes are biological catalysts that speed up chemical reactions by:

A geneticist is studying the transcription of a gene in a eukaryotic cell. They notice that the pre-mRNA transcript undergoes processing before becoming mature mRNA. What is a key step in eukaryotic transcription that involves processing of the pre-mRNA transcript?

During which stage of meiosis does independent assortment occur?

In a solution of saltwater, which component is typically the solute?

Which type of energy is associated with the motion of objects or particles?

In a laboratory experiment, scientists investigate the regulation of gene expression through transcription. They observe that a specific transcription factor binds to enhancer regions upstream of a gene, leading to increased transcription activity. What role does this transcription factor play in the regulation of gene expression?