Which of the following would contain genetic material that is 100% identical?
A. Homologous chromosomes
B. Sister chromatids
C. X and Y chromosomes
D. All of the answers are identical
B
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In transformation experiments using a variety of Bacteria, it has been noted that essentially all of the cells in a population can become competent
Indicate whether the statement is true or false.
The role of oxygen in cellular respiration is to
a. combine with carbon atoms to form carbon dioxide. b. allow glycolysis to continue. c. act as the final electron acceptor. d. aid in the transport of pyruvate into the mitochondria. e. supply an energy molecule.
What gives skeletal muscle its striated appearance?
In radishes, two incompletely dominant genes control color and shape. Red (R) is dominant over white (r), and heterozygotes are purple. Long (L) is dominant over round (l), and heterozygotes are oval. If a true-breeding long, red radish is crossed with a purple oval radish, give the F1 phenotypes and their percentages.
A. All long red B. 25% long red, 25% long purple, 25% oval red, 25% oval purple C. 25% long red, 50% round purple, 25% round white D. 25% long red, 50% long purple, 25% oval white E. 25% oval red, 25% oval purple, 50% round purple