Which inclusion body/bodies is/are hypothesized to direct some bacteria down toward sediments?

a. elemental sulfur granules
b. polyphosphate granules
c. poly-?-hydroxybutyrate (PHB)
d. magnetosomes


Answer: D

Biology & Microbiology

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The current cost of sequencing a human genome is

A. about $10 B. about $1,000 C. about $1,000,000 D. over $400,000,000

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6) This is what chromosomes other than X and Y are called. _____ 7) A segment on a chromosome that directs the synthesis of a specific polypeptide or protein, which may play either a structural or functional role in the cell. _____ 8) The observable physical traits of an individual. _____ 9) People with dark hair usually also inherit dark eyes. Why is this usually the case? _____ 10) The expression of the trait in heterozygous individuals is somewhere between the expression of the trait in the homozygous recessive and homozygous dominant individual. _____

A) Codominance B) Duplication C) Incomplete dominance D) Heterozygous E) Pedigree F) Phenotype G) Gene H) Deletion I) Autosomes J) Linkage

Biology & Microbiology

Which of the following is the correct evolutionary sequence?

A. birds ? reptiles ? fish ? amphibians B. fish ? birds ? amphibians ? reptiles C. reptiles ? birds ? fish ? amphibians D. amphibians ? fish ? reptiles ? birds E. fish ? amphibians ? reptiles ? birds

Biology & Microbiology

The sixth mass extinction event is due to the activity of ________.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology