If a substance is reduced, it gains electrons
Indicate whether the statement is true or false.
Answer: TRUE
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Rosalind Franklin used what method to understand the structure of DNA?
a. polymerase chain reaction b. gel electrophoresis c. X-ray diffraction d. high-throughput sequencing
In terms of their energy needed solar energy is converted to chemical energy primarily within the plans: stems leaves, roots,or flowers
What will be an ideal response?
Which of the following statements is NOT true about the debate over the nature of genetic material?
A. Many scientists believed that DNA was not the genetic material because, with only four types of nucleotides, DNA did not have enough variability to store information. B. Some scientists thought that RNA was likely to be the genetic material. C. Scientists focused on carbohydrate and protein in their studies of possible genetic material since they knew that genes were on chromosomes and that chromosomes were made of carbohydrate and protein. D. Many scientists thought that proteins had a greater capacity for storing information because proteins contain 20 amino acids that could be sequenced differently.
Which of these definitions of species most closely fits the biological species concept?
A) For asexually reproducing organisms, members of the same species are based on DNA and RNA base sequence analysis. B) Members of the same species can mate and produce fertile offspring. C) Members of the same species are all morphologically similar. D) Members of the same species look almost exactly alike.