Methicillin is related to penicillin, which was isolated from the bread mold Penicillium. Based on this, which of the following can you conclude is different between S. aureus and Penicillium?

a. The composition of their plasma membrane
b. Their type of genetic material
c. The structure of their organelles
d. The composition of their cell wall
e. The enzymes in glycolysis


Answer: d. The composition of their cell wall

Biology & Microbiology

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During prophase I of meiosis, each chromosome consists of ____

a. one single-stranded DNA molecule b. two sister chromatids c. one sister chromatid d. four sister chromatids e. one double-stranded DNA molecule

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All of the following are used in the

development of science except one. Select the exception.

a. evaluation of data b. personal conviction c. prediction d. systematic observation e. experiments

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Males tend to be affected in greater numbers by X-linked recessive genetic disorders than are females because

a. females have two dominant genes for the disorder. b. males have only one X chromosome. c. males have a double dose of the gene. d. Y chromosomes are not as strong as X chromosomes. e. females have only one X chromosome.

Biology & Microbiology

The red algae are classified as

a. rhodophytes. b. chlorophytes. c. phaeophytes. d. bryophytes. e. pterophytes.

Biology & Microbiology