Answer:
Lipids are composed of carbon, hydrogen and oxygen atoms, and in some cases contain phosphorus, nitrogen, sulfur and other elements.
if you are looking for the definition it is: Various structures in different species having the same function but have evolved separately.
Examples: wings of an insect and birds used for flying.
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Answer:
a) the pyrimidine ring is assembled before being bonded to the ribose phosphate, whereas the purine ring is bonded to the ribose phosphate as it is formed
Explanation:
There are two ways for the synthesis of purines and pyrimidines:
- de novo synthesis-from basic simple units
- "recycling" synthesis-reuse of metabolites
Purines are synthesized directly on ribose sugar, in segments.
Pyrimidines are attached to the ribose after the synthesis of the base.
Answer:
1. they are simply arranged differently
2. 3 billion letters, could fill 5,000 books
3. 100 trillion cells
4. 99% of us have the same genetic code 0.1% of it is diffrent
