A....................................
Answer:
Intramolecular bonds are the bonds that hold atoms to atoms and make compounds. There are 3 types of intramolecular bonds: covalent, ionic, and metallic. Covalent Bond: a bond in which a pair or pairs of electrons is shared by two atoms.
Explanation: I asked my dad who is a doctor .... I hope this helps!!!
Answer:
<u><em>Nucleotides base known as A is Adenine.</em></u>
Explanation:
A nucleotide comprises of the following three things:
- A nitrogenous base: <em>There are 5 types of nitrogenous bases. Adenine which is written as A, Guanine which is written as G, Cytosine which is written as C, Thymine which is written as T. The thymine is replaced by a Uracil in RNA. Uracil is written as U</em>.
- A five carbon sugar which is known as deoxyribose in the case of DNA and ribose in the case of mRNA.
- Phosphate groups
One way of learning about the earth's past is by studying fossils. When we find the fossil of a tropical fish, it means that at one time, there existed a warm ocean in the area. Palm trees thrived on a warm climate so we can also deduce that the environment at the time was also warm.