Lactase is an enzyme in the small intestine that helps break down the sugar lactose, found in milk As lactose approches the active site of lactase, which of the following occurs first?
A) the lactose molecule is broken down into glucose and and galactose
B) Lactose shifts to its lowest free energy level to allow lactose to enter the active site
C) Lactose creates a microenvironment as it approches lactase to promote binding
D) Temporary bonding occurs between the active site and the substrate, causing a conformational change

A. the lactose molecule is broken down into glucose and glactose

Explanation:

Answer;

1. DNA unzips in the nucleus

2. Transcription

3. RNA moves to the ribosome

4.Translation occurs

5. Protein assembled at ribosome

occurs.

Explanation;

-The central dogma describes the two-step process, transcription and translation, by which genetic information in genes flows into proteins:that is; DNA → RNA → protein. Transcription is the synthesis of an RNA copy of a segment of DNA, a process that is catalyzed by the enzyme RNA polymerase. Translation on the other hand involves making of the proteins from the mRNA (has codons that codes for specific amino acids) in the ribosomes.