True or false? The lac operon operates by having the repressor only leave the operator when it is bound to the lactose molecule

Biology

1 answer:

S_A_V [24]3 years ago

7 0

Answer:

true

Explanation:

When lactose is not available, the lac repressor binds tightly to the operator, preventing transcription by RNA polymerase. However, when lactose is present, the lac repressor loses its ability to bind DNA. It floats off the operator, clearing the way for RNA polymerase to transcribe the operon

You might be interested in

A scientist discovers a new species near coral reefs in Australia. She finds that this single-celled species is photosynthetic (

pochemuha

Answer:

1. Eukaryotic

2. Eukaryota

Explanation:

1. Eukaryotic- The newly found species has a cell wall and contains membrane-bound organelles. The presence of membrane-bound organelles shows that the cell is a Eukaryotic cell.

2. Eukaryota- the species is single-celled with the presence of cell wall without peptidoglycan. This shows that the species could belong to the Eukaryota domain proposed by Carl Woese.

Thus, 1. Eukaryotic and 2. Eukaryota is the correct answer.

4 0

3 years ago

I HAVE ALREADY CHOSEN THE T-REX

zavuch27 [327]

1.) The name of my organism is the Tyrannosaurus Rex.

2.) The T-Rex went extinct 65 million years ago when the meteor hit the earth.

3.) We couldn't have done anything about this.

4.) The T-Rex lived mainly in North America and Aisa, in forests with plant-eating dinosaurs.

5.) The T-Rex was tall and stood on 2 legs. the other legs were usually up off the ground for eating its prey. I had really sharp teeth for eating meat.