The majority of signal molecules are peptides and small proteins. Both are made of a chain of amino acids, the difference being the number of amino acids that make up the molecule. Generally, if the signal molecules has fewer than 50 amino acids it is considered a peptide. If it has more it is considered a protein.
An integral membrane protein is a kind of membrane protein, which is perpetually combined with the biological membrane. All transmembrane proteins are integral membrane proteins, but not all integral membrane protein are transmembrane proteins.
These proteins are anchored in the lipid bilayers and only non-polar, hydrophobic amino acid residues would be found in the part of the protein, which crosses the membrane. In the interior of the bilayer, these residues would be hidden from the water solvent and associate with the non-polar lipid tails.
They changed things up because its mixed or from up further in the family line. like your parents could have green eyes and you could get blue. it shoukd of came from your grandparents or other blood related relatives.
The correct answer for above statement is:
<h3>A. coevolution</h3><h3>Explanation:</h3>
Coevolution is the method by which two or extra kinds emerge in tandem by exercising selection forces on each other. Coevolution happens when two or more species reciprocally influence each other's development.
Answer:
A) & B)
Explanation:
A) There are certain viruses that are present in both healthy and disease people.
Example: Polio virus is found in many human but it causes disesease in only 1% of human.
B) Viruses require host machinery for replication so they may not replicate in pure culture.
The postulate C is also violated, the virus may not produce disease in non-human experimental host because of inappropriate animal or vaccinated animal etc. Others exception includes, the same disease may be caused by various organisms and different organisms can also cause the same disease.
