When the heterozygote is more fit than either homozygote, this is known as?
What will be an ideal response?
ANS:
overdominance or heterozygote advantage
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Of the following features, which is the most widely shared in the animal kingdom?
A. radial cleavage B. a body plan with symmetry C. protostome development D. molting of a cuticle or exoskeleton E. a triploblastic embryo
What is a major difference in the genomes of virus/bacteria vs. plants/animals?
A. The genomes of viruses/bacteria have great genetic diversity; those of plants/animals are simpler and less diverse B. The genomes of viruses/bacteria consist almost or entirely of coding sequences; in those of plants/animals most DNA is non-protein coding C. The genomes of viruses/bacteria are typically large; those of plants/animals are smaller
The exotoxin produced by Corynebacterium diphtheriae
A. causes an inflammatory response. B. may destroy cardiac and kidney tissue. C. causes the formation of a pseudomembrane on the respiratory mucosa. D. All of the choices are correct.
Of the major groups of fungi that are recognized by most mycologists, which includes the fungi with which most plants form mycorrhizae?
a. Chytrids b. Zygomycetes c. Glomeromycetes d. Ascomycetes e. Basidiomycetes