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.
Answer:True
Explanation:
Nerve impulse must reach a certain threshold in a neuron before action potential can be generated to intiate conduction of action potential.
Therefore if mutiple impulses are generated and these are not upto thresholds , no matter how strong the stimulI are-NO ACTION POTENTIAL WILL BE GENERATED.
THIS IS ALL OR NONE PRINCIPLE
The all or none hypotheses can be best explain with flushing of the water closet after using it. If required volume of water is not pumped into the water closet storage above, no matter how long the handle is push, FLUSHING WILL NOT TAKE PLACE.Thus the threshold volume of water must be met.
Answer:D. tapeworms live inside a goats body in a close relationship the goat.
Explanation:
In parasitic relationships,the parasite lives on the host and benefits from the host while causing harm to the host .the host does not benefit.the parasites are usually in close relationship with their host as their food source are substances of the host organisms.
The parasite may live in the host , these are called Endo-parasites.
The parasite may live outside the host, these are called ecto-parasite. In this example, the tapeworm is an endo-parasite that lives in the digestive tract of the goat. It absorbs digested food in the intestine through it's body surface.
In predator and prey relationship, the predator usually has to hunt for the prey and feed on it. It may kill it first or may not
<span>Among other parts, Cl-channels or Chloride channels hold a great importance in maintaining the proper volume of the cell. It is significant also especially cell proliferation and salt secretion.</span>
Both human and bacteria cells contain DNA and both have a outer membrane that controls how materials come into and leave the cell.
Predominantly multicellular not in bacteria but in human body
*Cell contains a nucleus and other membrane bound organelles not in bacteria but in human body..
*DNA occurs in a circular form* in bacteria only..
* Ribosomes size in bacteria 70s and in human body 80s
*Capable of growth at temperatures greater than 80 C only in bacteria
*His tone proteins present in cell only in human body cells
* Operons present in DNA only in bacteria..
