Late blight of potatoes that caused the Irish potato famine is caused by members of the genus
__________.
a. Myxomycota
b. Phytophthora
c. Giardia
d. Macrocystis
e. Physarum
B
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A solution with a pH of 2 has how many more protons in it than a solution with a pH of 4?
A. 100 times more B. 5 times more. C. 1000 times more. D. 10 times more.
In experiments with laboratory populations of Drosophila melanogaster, Mukai and Burdick (1959 ) observed that a lethal allele maintained a higher than expected frequency
The explanation for this observation is that, at equilibrium, the selective advantage of the lethal allele when it occurs in heterozygotes balances the disadvantage of the allele in homozygotes, and is termed ________. A) equilibrium distribution B) underdominance C) allelic frequency dependence D) overdominance E) terminal dominance
The process of ________ requires the activity of DNA ligase
A) translation B) capping C) transcription D) DNA replication E) transduction
In the simple linear regression, the intercept will equal the sample average of the outcome (Y) variable if which of the following is true?
A. sCov(X,Y) < 0 B. sCov(X,Y) = 0 C. sVar(X) > 0 D. sVar(Y) > 0