<span>Answer:
Think of DNA-there are only 4 bases, but different combinations give infinite possibilities.
And the same for amino acids and proteins.
Immunoglobulins work on a similar principle. Different VDJ segments are combined for the heavy chain of an antibody. Different VJ segments are combined for the light chain.
Other ways:
Random nucleotides may be added or removed between the gene segments.
There are also different combinations of light and heavy chains.
Antibodies can be any of the 5 isotypes: IgA, IgM, IgG, IgE, IgD.
I'm not going to go into detail as this answer would take too long to write. Do some literature searching on B cells, V(D)J recombination, RAG genes, class switching.</span>
Answer:
lysosomes break down macromolecules. plant cells have bigger vacuoles than animal cells
Explanation:
Answer:
The statement is false
Explanation
There are four basic types of tissue and each tissue perfom its specific function.
Example
1. Epithelial tissues
These tissues form protective covering around the external body, internal structures, air passageway and form glands.
2. Connective tissues
these tissues bind cells and organs of the body.
3. Muscle tissues
These tissues help in movement.
4. Nervous tissues
These tissues help in nervous coordination.
<span>The actual potato only holds energy. The roots soak up the water and transfer the necessary nutrients to the food, rather than the potato gathering it directly. The potato may swell a little bit, however for the most part it isn't able to suction enough, nor does it need to.
hope this helps</span>
Answer:
D.) the instructions are stored in the nucleus
Explanation:
The nucleus contains DNA
