Extranuclear genes show a biparental inheritance pattern in yeast since
A) progeny from diploid vegetative growth can have the phenotype of the dominant phenotype.
B) progeny from diploid vegetative growth can have the phenotype of the ? parent.
C) progeny from diploid vegetative growth can have the phenotype of only the a parent.
D) progeny from diploid vegetative growth can have the phenotype of either the a or the ? parent.
D) progeny from diploid vegetative growth can have the phenotype of either the a or the ? parent.
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Considering the global carbon cycle, where are humans having a great impact?
I) terrestrial ecosystems II) oceans III) atmosphere A) only I B) only II C) only III D) only I and III E) I, II, and III
The cell membranes of wall-less archaeons are strengthened by ________.
A. pseudomurein B. diglycerol tetraethers C. glycoprotein or protein layers D. diglycerol ethers
Why do heavy consumers of alcohol gain weight?
a. Alcohol contains an excessive amount of calories. b. Ethanol is converted directly to fat molecules. c. Oxygen is diverted from breaking down fatty acids to break down ethanol. d. Ethanol inhibits the action of peroxisomes which work to break down fatty acids. e. The hydroxyl group on ethanol is transferred to fatty acids causing them to be stored as fat.
According to the studies of Eyre-Walker and Keightley (2007 ), there appear to be four types of mutations observed in most organisms. Which of the following is NOT a type of mutation that is observed?
A) deleterious B) lethal C) neutral D) additive E) beneficial