When comparing genes from Archaea, Bacteria, and Eukarya, which statement is TRUE?
A) Almost all archaeal genes are more similar to eukaryotic genes than to bacterial genes.
B) Almost all archaeal genes are more similar to bacterial genes than to eukaryotic genes.
C) Genes in Archaea involved in DNA replication, transcription, and translation are more similar to those of Eukarya, while those encoding metabolic functions other than information processing are more similar to those of Bacteria.
D) Archaeal genes are almost universally unique; very few are similar to either eukaryotic or bacterial genes.
Answer: C
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Which one of the following characterizes cancer cells?
a. Mitosis is strictly regulated. b. Cancer cells form tumors that strongly adhere to surrounding tissues. c. Cancer cells display uncontrolled cell division. d. Tumors formed by cancer cells remain encapsulated and only grow in one location. e. Cancer cells behave like normal cells.
Mendel selected 7 traits in pea plants to study. What was lucky about this choice?
a. Peas are easy to raise and have short life cycles. b. All 7 traits were easy to characterize. c. The 7 alleles segregated independently from each other. d. He knew enough mathematics to apply rules of probability to his results. e. The 7 traits were all located on the same plant chromosome.
The reef flat of fringing reefs descends into a lagoon
Indicate whether the statement is true or false
Franklin's assignment at Cambridge was to investigate the structure of ____
a. proteins b. ultraviolet radiation c. DNA d. embryonic fluid e. lipids