The atomic number of an atom is
A. the number of protons in the atom.
B. the number of neutrons in the atom.
C. the number of protons and electrons in the atom.
D. the number of protons and neutrons in the atom.
E. None of these choices are correct.
A. the number of protons in the atom.
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In the original experiments by Stanley Miller and Harold Urey to synthesize organic molecules in an abiotic environment, which one of the following would you NOT expect to find in the collection flask?
A. urea B. amino acids C. ATP D. adenine E. formaldehyde
Four of the five answers listed below exhibit a dominant sporophyte stage. Select the exception
a. Bryophytes b. Monocots c. Eudicots d. Gnetophytes e. Cycads
According to MacArthur and Wilson's island biogeography theory, which of the following would be expected to have the smallest species richness?
A. the mainland B. a large island near the mainland C. a large island far from the mainland D. a small island near the mainland E. a small island far from the mainland
In Drosophila, an individual female fly was observed to be of the XXY chromosome complement (normal autosomal complement) and to have white eyes as contrasted with the normal red eye color of wild type
The female's father had red eyes, and the mother had white eyes. Knowing that white eyes are X-linked and recessive, present an explanation for the genetic and chromosomal constitution of the XXY, white-eyed individual. It is important that you state in which parent and at what stage the chromosomal event occurred that caused the genetic and cytogenetic abnormality.