A. Natural Selection. This is because the weeds that are not resistant to it die out before they can reproduce, but the resistant ones grow to maturity and then reproduce, passing down the resistance gene. Over time, the resistance gene would become a normal thing in weeds, while the non-resistant gene would not exist anyone, since the gene could not be passed on.
Answer:
D
Explanation:D Sorry if I'm wrong!
Answer:
This is an incomplete question without the options.
Here are the options to pick from
DY
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Within a six-base DNA recognition sequence, an enzyme that cuts between the 3rd and 4th bases from the 5' end will generate blunt ends.
a)True
b)False
a) True
What is the function of restriction endonucleases in bacteria?
a) They serve no function.
b)They allow bacteria to genetically recombine with other bacteria.
c) They allow bacteria to engineer new DNA fragments.
d)They provide a defense mechanism against infection by viruses.
Our answer is surely D
d)They provide a defense mechanism against infection by viruses.
Explanation:
Restriction enzyme/restriction endonuclease:
Are produced by bacteria for cleaveing DNA at specific sites. Restriction enzymes cleave foreign DNA in the bacterial cell to fight against infecting organisms.
Pls Note:
Restriction enzyme are used by
bacteria to defend against bacterial viruses called bacteriophages or phages
Answer:
The cell membrane holds the cell's internal contents from its environment.
The cell membrane is comprised of two layers of fat.
The cytoplasm is a liquid in which the various organelles of the cell are suspended.
The cytoplasm keeps organelles in place. It also allows different materials to flow from one organelle to another.
The nucleus of a cell contains genetic material. DNA, RNA and mitochondria replicate in the nucleus. The nucleus also produces and replicates proteins, and sends the proteins to other parts of the cell.
I hope this helped
