Answer:
The correct answer is -
Thymine: 20%
Guanine: 30%
Cytosine: 30%
Explanation:
According to Chargaff's rule which states that the purine residues are equal to the pyrimidines residue in DNA sample which means A+G = T+C where A is adenine, G is guanine, C is cytosine and T is thymine. It is also known that A is always equal to T and C is equal to G.
So, A+G+T+C = 100
20+20+G+C
100-40 = G+C
60= G+C
as we know G is equal to C similarly A is equal to T
Thus, G = C= 30%
A= T= 20%
Animal Cells do not contain a (B Cell Wall) instead have a Plasma Membrane which is made up of I believe a lipid bi layer.<span />
Answer:
a
Explanation:
Cells are the functional units of life, this means that all living organisms are made up of cells. In multicellular organisms, cells are organized into complex structures such as tissues, organs and systems. A tissue is made up of similar cells which have the similar function. An organ is made up of several tissues while a system is made up of related organs. Example of a tissue is blood which is made up of similar cells such as red blood cells and white blood cells.
Answer:
Structure A is the most stable since the negative charge is anticipated to occur on the more electro-negative atom and Nitrogen is more electro-negative than sulfur hence structure A is preferred.
Explanation:
.. ..
1- [:S=C=N:]
Structure A.
..
2- [:S-C≡N:] Structure B.
..
..
3- [:S≡C-N:] Structure C.
..
