Which of the following is NOT a predisposing factor affecting the occurrence of disease?

A) climate
B) nationality
C) nutrition
D) preexisting illness


Ans: B) nationality

Biology & Microbiology

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When two or more genes from the same genome have nucleotide sequences so alike that they most probably arose from gene duplication those genes are called ________.

A. homologs B. duologs C. orthologs D. paralogs

Biology & Microbiology

Viruses and bacteria were first cultured in the laboratory at about the same time.

Answer the following statement true (T) or false (F)

Biology & Microbiology

The term biome refers to

a. the animals present in a given area. b. the interaction of living organisms and the physical environment in a region. c. large regions with distinctive plant communities. d. all the living organisms in an area. e. only the bacteria in a region.

Biology & Microbiology

__________ fills spaces between cells. Fill in the blank(s) with the appropriate word(s)

Biology & Microbiology