Answer:
b)Crossovers between these genes result in chromosomal exchange. d)Nonrecombinant chromosomes break and then re-join with one another.
Explanation:
Answer:
True
Explanation:
Solar panels absorb the rays from the sun and convert them into energy more or less
Answer:
Conformation change
Explanation:
Repressor protein in the absence of lactose binds to the operator region of the lac operon and does not allow the RNA polymerase to bind to the promoter and start the transcription of lac gene.
In the presence of lactose or allolactose, the repressor protein is not able to bind to the operator region because lactose binds to the active site of repressor protein which results in a conformation change in the repressor protein.
So as the shape of the repressor protein gets changed it do not able to bind to the operon operator and the operon is expressed.
Trophic levels are the steps in between which the transfer and loss of energy occur.
Answer:
transport of substances across a biological membrane through a concentration gradient
Explanation:
if im wrong im deeply sorry, im not good at this but ill find an internet explination>
<h2>Main Difference – Simple Diffusion vs Facilitated Diffusion
</h2><h2>Simple diffusion and facilitated diffusion are two types of passive transport methods in which the cell membrane transports molecules across it. It uses natural entropy to move molecules from higher concentration to a lower concentration until the concentration becomes equalized. Hence, no ATP energy is used for the transportation of molecules. There are four main types of passive transport: osmosis, simple diffusion, facilitated diffusion and filtration. The main difference between simple diffusion and facilitated diffusion is that simple diffusion is an unassisted type of diffusion in which a particle moves from higher to a lower concentration across a membrane whereas facilitated diffusion is the transport of substances across a biological membrane through a concentration gradient by means of a carrier molecule.</h2>