Mendel accounted for the observation that traits that had disappeared in the F1 generation reappeared in the F2 generation by proposing that _____
A) new mutations were frequently generated in the F2 progeny, "reinventing" traits that had been lost in the F1
B) the mechanism controlling the appearance of traits was different between the F1 and the F2 plants
C) traits can be dominant or recessive, and the recessive traits were obscured by the dominant ones in the F1
D) members of the F1 generation had only one allele for each trait, but members of the F2 had two alleles for each trait
C
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Indicate whether the statement is true or false.
A trait is a(n) ____________________ property of an organism
Fill in the blank(s) with correct word
Glycolysis yields a net energy profit of __________ ATP molecules per molecule of glucose
a. 0 b. 1 c. 2 d. 4 e. 6
Chemical germicides
A. may react irreversibly with proteins/enzymes.
B. may react with cytoplasmic membranes or viral envelopes.
C. may be disinfecting or even sterilizing.
D. are sensitive to dilution factor, time of contact, and temperature of use.
E. All of the choices are true.