I would say B because A doesn’t have a ring to it.
• Biochemical processes give rise to the complexity of life
• Much of biochemistry deals with the structures and functions of biological macromolecules.
• Such as proteins nucleic acids, carbohydrates and lipids, which provide the structure of cells and perform many functions associated with life
Answer:A. the same number of chromosomes as was contained in the zygote.
Explanation:a zygote is formed when the sperm fertilize the egg .
After fertilization,the zygote undergoes cleavage.cleavage is the mitotic Division of the cells of a zygote to produce daughter cells.
These daughter cells are called blastomere,which contains the same number of chromosomes as the parent cells.the cells formed do not grow in size but continues to divide, forming a mass of cells.
This mass may be solid at first but as cleavage continues,the cells move away from the center,leaving a fluid filled cavity in the middle (blastocoel).
The mass of cells are called blastula.
Answer:
Reverse transcriptase, a viral enzyme that comes from the virus itself, converts the viral RNA into a complementary strand of DNA, which is copied to produce a double stranded molecule of viral DNA. This viral DNA is then transcribed and translated by the host cell's machinery, directing the formation of new virions
Explanation:
Answer: C. a double helix with bases inside the helix
