Answer:
Ty2 strain present in the Salmonella typhi bacteria can easily enter into the epithelial cells.
<u>Explanation</u>:
This is the bacteria that causes the typhoid fever in humans. This disease affects greater than 21 million people worldwide annually. On severe cases it leads to death of the patient. The penetration into epithelium cell is one among the essential part in its parthenogenesis. Previous interaction of the bacteria along with the epithelial cell are much necessary before its invasion. The expression involves the adhesins and fimbria.
An animal that is only a secondary consumer can also be called a HERBIVORE
Answer:The n means neutron(n)
The (-) negative charge is electron(e)
The positive(+) charge is the proton(p)
The arrow is the orbit or shell
Explanation:
The double layer of a phospholipid is called a lipid bilayer
Answer:
Non-covalent interactions.
Explanation:
DNA is present as genetic material in all the living organism except some viruses. DNA also perform important other functions - code for proteins, used as a source of energy.
The DA binds with protein to perform their functions. These proteins may acts as activator for DNA. The proteins binds in the non covalent interactions ( ionic bonding, hydrogen bonding, vanderwalls and hydrophobic interaction) so that proteins may easily detach from the proteins. These interactions helps in the attachment and easily detachment of proteins from DNA.
Thus, the correct answer is non-covalent interaction.