Oxidation occurs when an atom gains one or more electrons
__________________ Indicate whether the statement is true or false.
False - loses
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Using Northern and Southern blot techniques, you study a gene, CAE1, that seems to be associated with lung cancer. Your probe in both blots is a 32P-labeled single strand DNA that can base pair with the CAE1 RNA and with the CAE1 gene
You isolate DNA and RNA from brain, heart, lung, and cancerous lung tissue. The DNAwas cut into DNA fragments with a restriction endonuclease before electrophoresis. The results of the blots are shown here. Which one of the following is an observation or conclusion consistent with the data? A. There are fewer CAE1 genes in brain tissue compared to heart tissue. B. The DNA sequence of the CAE1 gene in lung cancer cells is different than in other tissues. C. The amount of CAE1 RNA in lung cancer cells is higher than in other tissues. D. The amounts of all RNAs in heart cells and normal lung cells are the same. E. Deleting the CAE1 gene in all tissue types would be a possible cancer cure with little or no side effects.
Based on molecular analysis, which of the following appears to be least meaningful for inferring
animal phylogenic relationships?
a. presence or absence of tissues b. mitochondrial DNA sequences c. radial symmetry in the Radiata d. body cavity differences e. Hox gene sequences
A flower with carpels and stamens but no petals or sepals is
a. perfect and incomplete. b. imperfect and complete. c. imperfect and incomplete. d. perfect and complete. e. sterile
Which of the following is NOT true of
euglenoids? a. Many move by pseudopods. b. Many contain chloroplasts. c. Many absorb nutrients from their environment in a heterotrophic manner. d. Their cell body is surrounded by a pellicle. e. They use a contractile vacuole to maintain water balance