How many principles are there in Koch's postulates of disease?

A) 1 B) 2 C) 3 D) 4 E) 5


Answer: D

Biology & Microbiology

You might also like to view...

Why is transcription-coupled repair (TCR) considered particularly efficient when compared to nucleotide excision repair (NER)?

A. The exinuclease employed in TCR removes a smaller fragment containing the damage. B. TCR targets transcriptionally active regions for repair over damage in less active parts of the genome. C. It uses error-prone polymerases so it can move through damaged areas faster. D. It directly repairs the damage rather than removing and replacing the damaged strand. E. TCR requires less protein interactions.

Biology & Microbiology

A cross between two purple flowers that are heterozygous for their traits is an example of a ________

a. monohybrid cross b. dihybrid cross c. Punnett square d. test cross e. None of these choices.

Biology & Microbiology

Which of the following represents a synthesis reaction?

A. A + B ? AB B. AB ? A + B C. AB + XY ? AY + XB D. AB + XY ? AY + XB

Biology & Microbiology

Members of which group(s) can be single-celled producers?

a. plants b. protists c. bacteria d. bacteria and protists e. bacteria and plants

Biology & Microbiology