Answer:
an error in dna replication would affect many generations of cells
Explanation:
because DNA replication contains essentially all the genetic materials that will be needed in transcription and translation processes. And DNA replication is first step to ensure correct protein synthesis and others as well. But translation and transcription are both important to be exact, actually as incorrect transcription or translation could lead to useless proteins or etc.
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.
Without a control group there wouldn’t be any basis for knowing if a result is due to the variable being tested
Answer:
The three elements that make up over 99 percent of organic molecules are carbon, hydrogen and oxygen.
Explanation:
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