she beamed X-rays through a molecule (X-ray crystallography) which gave a shadow picture by how the X-rays bounced off its component parts. this showed the double helix shape of dna
Answer:
Anaerobic respiration
Explanation:
As rightly stated in this question, cells of all living organism synthesize ATP via the process of cellular respiration. Cellular respiration, however, occurs in stages starting with GLYCOLYSIS, which breaks down glucose to form PYRUVATE.
The metabolism of pyruvate in subsequent steps depends on whether the respiration process is occuring with or without oxygen. Without oxygen, pyruvate is metabolized in a process called ANAEROBIC RESPIRATION. Anaerobic respiration employs other molecules asides OXYGEN for last electron acceptor.
Answer:
Species with larger population sizes have more noncoding DNA.
Explanation:
The statement that most non-coding DNA is deleterious contradicts the fact that Species with larger population sizes have more noncoding DNA. Had the non coding been deleterious , its proportion in species with larger population would have been less but the fact that species with larger population sizes have more noncoding DNA contradicts it.
Answer:
Periodic selection.
Explanation:
Some bacterial strain has the ability to develop the resistance against the particular drug. This helps the bacteria to survive against the adverse environmental conditions.
The periodic selection may be defined as the natural selection that selects some strains of the bacteria that can survive in the particular environment. The periodic selection also favors the adaptive mutation that might occur due to the recombination in bacteria and removes the non selective species. The information given in the question provides the example of periodic selection.
Thus, the answer is periodic selection.
I've actually learned something similar recently so your best bet is to go with B.
