Imagine that NASA discovered a new planet with an atmosphere rich in hydrogen gas, hydrogen sulfide, ammonia and methane. We would call this a(n)
A. oxidizing atmosphere because of the availability of oxygen compounds.
B. reducing atmosphere, because of the availability of hydrogen atoms that can donate electrons.
C. reducing atmosphere because the atmosphere would reduce the energy necessary to build molecules.
D. oxidizing atmosphere because of the lack of oxygen gas.
Answer: B
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The upper layer of warm, less dense water is referred to as the
A) thermocline. B) hypolimnion. C) epilimnion. D) benthic zone.
Examine the pedigree in the figure above. Individuals affected by the genetic condition in question are indicated by
filled squares or circles. Which inheritance pattern is most likely correct for this condition in this family?
a. autosomal dominant b. X-linked recessive c. X-linked dominant d. cytoplasmic inheritance e. autosomal recessive
What would happen if the septum did not form during binary fission?
a. The chromosome could not replicate. b. Nothing; the septum is not required for binary fission. c. The parent cell would now have two copies of the chromosome. d. The daughter cells would not be genetically identical.
if a pea plant is heterozygous for yellow seeds (Gg), the gametes will have which of the following allele(s)?
A. G only B. G or g C. g only D. Gg E. GGgg