Factors that can alter the level of expression of a gene include

_____ an increase in environmental temperature.
_____ an increase in salinity.
_____ exposure to UV radiation.
_____ presence of a particular energy substrate.


__X__ an increase in environmental temperature.
__X__ an increase in salinity.
__X__ exposure to UV radiation.
__X__ presence of a particular energy substrate.

Biology & Microbiology

You might also like to view...

At one end of a tRNA molecule is a sequence of 3 nucleotides called an anticodon that ____

a. signals the production of a ribosome b. signals the unwinding of the DNA coils c. initiates the movement of mRNA out of the cell nucleus and into the cytoplasm d. binds to its anti-complementary tRNA codon e. binds to its complementary mRNA codon

Biology & Microbiology

Pharmacogenomics

a. seeks to customize drugs to the cellular proteomes of a patient. b. might target specific disease mechanisms and thus minimize side effects. c. would account for an individual's metabolism. d. would require a person's genetic profile to be determined and subsequently stored in some database. e. all of the above

Biology & Microbiology

Four of the five regions listed below are located

within the spinal cord. Select the exception. a. dorsal root ganglion b. interneurons between sensory input and motor outputs c. major ascending and descending nerve tracts d. interneurons connecting with other neurons e. direct reflex connections between sensory and motor neurons

Biology & Microbiology

Which event of fertilization occurs first?

A. the acrosomal reaction B. the entry of sperm DNA into the egg C. the cortical reaction D. cleavage E. vitelline layer hardens

Biology & Microbiology