Randomly selecting samples of experimental

units from an environment can result in
a. sampling error.
b. blind testing.
c. evidence.
d. experimental design.
e. consensus


A

Biology & Microbiology

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A cell with three pairs of chromosomes has the genotype Aa Bb Cc, with each locus on a different chromosome. If this cell were to undergo mitotic division, how many genetically different types of daughter cells could be produced?

A) 1 B) 3 C) 6 D) 8 E) 9

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You perform a test cross of the dihybrid AaBb and score the phenotypes of 1000 progeny. Assuming independent assortment, how many of the progeny do you expect to display the dominant phenotype for both the A and B genes?

A) 100 B) 200 C) 250 D) 500 E) 750

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What do you expect would develop if you injected Dnmt3 siRNA into honeybee larvae?

A. a female queen B. a male drone or a female worker C. a male drone D. a female worker E. a female worker or a queen

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When cAMP is produced in a cell, it will then

A. bind to a repressor of protein kinase A. B. serve as a substrate of protein kinase A. C. increase transcription of protein kinase A. D. inhibit protein kinase A. E. dephosphorylate proteins phosphorylated by protein kinase A.

Biology & Microbiology