The ash in the atmosphere blocks the sunlight.
Hope this helps! <3
Answer:
D
Explanation:
i got it right on study island
Genes involved in lactose metabolism can be found in the E. coli lac operon. Only when lactose and glucose are both present does it express.
<h3>Why are the E. coli genes involved in lactose metabolism referred to as an operon?</h3>
They are both under the same promoter's control. A promoter is a brief DNA region where RNA polymerase interacts to initiate transcription of the downstream genes that are under its transcriptional control. When more than one gene is controlled by the same promoter, we refer to the group of genes as an operon.
<h3>The lac operon turns on when there is lactose present.</h3>
Lactose binds to the repressor protein and prevents it from binding to the operator when lactose is present in the media.
To know more about E. coli about visit:-
brainly.com/question/1657681
#SPJ4
Answer:
express different genes
Explanation:
cells of a multicellular organism have the same genes with the same chromosomes
however their expression varies from cell to cell depending on their function
Let me help you!
<span>Based on the common terminology criteria for adverse events, the grade 4 is assigned to a hospitalized patient requiring periodic blood transfusions for a treatment side effect of non infectious hemorrhagic cystitis.</span>
Therefore, the answer for your question is: Gade 4.
