Gene expression is influenced by many factors. Which of the following is a factor in gene expression?

A.) phenotype
B.) pedigree
C.) environment
D.) karyotype


Ans: C.) environment

Biology & Microbiology

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External economies (typically achieved in urban areas) result from all of the following except

A) shared labor markets. B) shared information and innovation. C) shared infrastructure. D) shared fixed social capital. E) shared profits.

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What region of the 5-week embryo gives rise to the midbrain?

a. telencephalon b. diencephalon c. mesencephalon d. metencephalon e. myelencephalon

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Which of the following processes dominates the third trimester of human development?

A) formation of external features such as arms and legs B) formation of hair and fingernails C) rapid growth D) organ formation

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Which term describes human pathogens?

A) Thermophiles B) Mesophiles C) Halophiles D) Acidophiles E) Psychrophiles

Biology & Microbiology