A water molecule consists of one oxygen atom bonded to two hydrogen atoms by covalent bonds
Answer:
The name of the enzyme is DNA POLYMERASE.
Explanation:
DNA replication is the process by which the DNA reproduce itself. During the process of replication, the blocks of nucleotide that are been added are checked constantly by mean of proof reading in order to ensure that all the nucleotide are properly paired. The enzyme that carried out the work of proofreading and subsequent repair is DNA polymerase enzymes. The activities of the enzyme ensures that no mutation occur in the DNA strands that are been produced.
Answer:
A negative feedback initiated by the external simuli or the products of a reaction aims to reduce the products/ output of the reaction. Hence In negative feedback the stimulus is reduced. An example of a negative feedback would be if a person had an elevated body temperature, the homeostatic response would be to lower the body temperature.
Answer: C. Miller and Urey showed that inorganic compounds could combine to form the building blocks of living cells.
Explanation:
The Miller and Urey were the two scientists who created the atmospheric conditions that were expected to be present on primitive earth. They demonstrated that several organic compounds have been formed spontaneously from the inorganic compounds like water, ammonia, methane and others.
The exposure of mixture of inorganic compounds by the lightening lead to the formation of organic molecules like amino acids which are the building blocks of life. This was similar to the penetration of earth atmosphere by UV radiation producing the organic compounds from inorganic molecules.
