In overdominance, the _______ genotype is beneficial over the _______ genotypes

A. heterozygous, homozygous
B. homozygous, heterozygous
C. homozygous dominant, homozygous recessive
D. homozygous recessive, homozygous dominant
E. incomplete dominant, codominant


A

Biology & Microbiology

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In 2006, the U.S. generated __________ tons of

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Fungi produce gametes by which of the following processes?

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Biology & Microbiology

A P. bursaria cell that has lost its zoochlorellae is said to be aposymbiotic. It might be able to replenish its contingent of zoochlorellae by ingesting them without subsequently digesting them

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Biology & Microbiology

The ribosomes in eukaryotic cells are larger than the ribosomes in prokaryotic cells

Furthermore, eukaryotic ribosomes are not affected by some chemicals that affect prokaryotic ribosomes, a fact that can be put to good use by microbiologists seeking new antimicrobial drugs. An example of this is the antibiotic erythromycin, which prevents protein synthesis by prokaryotic ribosomes but does not affect eukaryotic ribosomes at all. Thus, erythromycin kills bacteria but does not affect humans or other animals. Using this information, which of the following would be expected and would support the endosymbiont hypothesis? A) Mitochondrial ribosomes will be larger than prokaryotic ribosomes. B) The ribosomes in chloroplasts will be sensitive to erythromycin. C) Mitochondria and chloroplasts will not have ribosomes. D) Mitochondrial ribosomes will be smaller than prokaryotic ribosomes.

Biology & Microbiology