An insulator can block a repressor from silencing a gene’s transcription.

Serine recombinases create single strand breaks to recombine DNA.

What is the morphogen for the mammalian ventral neural tube?

Based on the gene locus below (with the active promoter denoted by the arrow) expressing fljB and fljA, what flagellin is expressed?

Accommodation helps to proofread the incoming amino acid in peptide synthesis.

The majority of eukaryotic protein-coding genes undergo alternative splicing.

What type of mutation changes the amino acid encoded by the codon?

You want to design a mouse that has the ChAT (choline acetyltransferase) gene knocked out only in motor neurons (promotor: Hb9) using the Cre-Lox system. Which mouse models do you need?

How does DNA damage cause lysogenic induction?

The “pincers” of bacterial RNA Pol are the