The products of maltose fermentation in bread-making are ________.

A. carbon dioxide and water
B. lactic acid and carbon dioxide
C. lactic acid and water
D. ethanol and carbon dioxide
E. ethanol and water


Answer: A

Biology & Microbiology

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You are conducting an experiment on plant growth. You take a plant fresh from the soil that weighs 5 kilograms (kg). Then you dry the plant overnight and determine the dry weight to be 1 kg. Of this dry weight, how much would you expect to be made up of o

A) 1 gram B) 4 grams C) 40 grams D) 960 grams E) 1 kg

Biology & Microbiology

New combinations of linked genes are due to which of the following?

A) nondisjunction B) crossing over C) independent assortment D) mixing of sperm and egg E) both A and C

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Hemophilia is a recessive X-linked genetic disease. A father who has hemophilia will give the defective allele to ___________

a) all of his daughters and none of his sons. b) none of his daughters and all of his sons. c) 1/2 of his daughters and none of his sons. d) all of his daughters and 1/2 of his sons.

Biology & Microbiology

Many patients who have a certain blood clotting disorder in which the blood clots too readily have a mutation in the promoter of a gene. This mutation most likely

A) deletes a gene for a clotting factor. B) blocks transcription of a clotting factor. C) increases susceptibility to a specific viral infection. D) increases the transcription rate of a particular clotting factor gene.

Biology & Microbiology