Light rays from each point on an object being viewed are bent by the ____ and ____
Fill in the blank(s) with the appropriate word(s).
Ans: cornea and lens
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In cellular organisms, on average, about one nucleotide in every ____ is mistakenly substituted for another during each round of DNA replication
A. 100 B. 1000 C. 100,000 D. 1 billion E. 10 billion
Which of the following organisms is used by molecular biologists to produce transgenic plants?
A. E. coli B. Plasmid pSC101 C. Bacteriophage l D. Agrobacterium tumefaciens
The fungus Botrytis cinerea infects grapes. When grapes infected with this fungus are picked at the appropriate stage, they produce a delicious sweet wine. In order for wine producers to encourage this infection, they could try to enhance the function of which fungal genes?
A. Avirulence genes. B. Resistance genes. C. Genes that encode microRNAs. D. Genes that lead to the production of NO.
Reconstructions of the evolutionary relationships of a set of taxa are called
A) classifications. B) phylogenetic trees. C) UPGMA networks. D) networks. E) evolutionary scenarios.