Yes, it is possible that evolution occurs in this case.
At first, the new insecticide is effective against the boll weevil. Spraying the insecticide will kill the boll weevil in a way. The insecticide might attack boll weevil enzyme or any part of its organs.<span>
But some of them might have a mutation that renders the insecticide ineffective. The mutation probably happens to DNA that code the enzyme or protein that targeted by the insecticide, makes the insecticide completely ineffective.
The next spray will kill all old organism, leaving the new resistant organism in less competition area. This will allow the resistant organism to grow fast and eventually replace all the old organism in the area.</span>
Answer:
(A) two
Explanation:
A heterodimeric protein consists of two polypeptides (a polypeptide is a chain of amino acids) that differ in amino acid composition, number or order in the chain sequence. Each polypeptide makes a different subunit of the protein.
One gene encodes one polypeptide, so if the protein has two different polypeptides, two genes are required to form this protein.
The following provides the best argument for separating Archaea and Bacteria into their own domains instead of leaving them together in the single kingdom, Monera :
<u>It was discovered that they make their membranes differently and copy their DNA differently.</u>
Explanation:
The reason that Archaea were determined to be a separate kingdom so late was because archaea often completely resemble eubacteria. But you can see that fungi and other eukaryotes are more similar to archaea than the bacteria.
Archaea have cell walls that lack peptidoglycan and have membranes that enclose lipids with hydrocarbons rather than fatty acids
Bacteria: cell membrane contains ester bonds; cell wall made of peptidoglycan; have only one RNA polymerase; react to antibiotics in a different way than archea do
Archaea and bacteria are both prokaryotes, meaning they do not have a nucleus and lack membrane-bound organelles.
Both archaea and bacteria have flagella, thread-like structures that allow organisms to move by propelling them through their environment.
In all organisms, cell membranes are made of molecules known as phospholipids.
The phospholipids of archaea are unusual as they have membranes composed of glycerol-ether lipids, whereas bacteria and eukaryotes have membranes composed mainly of glycerol-ester lipids
I believe we would always be really fat
Answer:
Option C is correct
Explanation:
Wavelength of the sound waves varies inversely with respect to frequency which means that if frequency increases wavelength will decrease and if frequency decreases wavelength increase.
Mathematically this relation can be represented as -
Where W represents the wavelength and f represents the frequency
When frequency is constant, wavelength exhibit direct proportionality relationship with speed.
