Cystic fibrosis in humans is caused by a recessive loss-of-function mutation in a locus on chromosome 7 that encodes for a protein called ________. [five words]

Fill in the blank(s) with correct word


cystic fibrosis transmembrane conductance regulator (CFTR)

Biology & Microbiology

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Alternate forms of genes resulting from mutations are called

A. alterons. B. isoforms. C. lethal. D. alleles.

Biology & Microbiology

As the size of a cell increases, 

A. the surface area increases faster than the volume. B. the surface area and the volume increase at the same rate. C. the volume increases faster than the surface area. D. there is no relationship between surface area and volume.

Biology & Microbiology

Using powerful new sequencing technologies, investigators can now catalog every RNA molecule made by a cell and determine at what quantities these RNAs are present. In an experiment, researchers measured the relative quantities of two different mRNAs—one transcribed from gene A, the other from gene B—in two different cell types. Gene B is expressed in both the liver and the brain whereas gene A is expressed in the brain but not in the liver. Which most likely encodes a housekeeping protein?

A. gene B only B. gene A only C. both genes D. neither gene

Biology & Microbiology

If the ID for gonorrhea is 1,000 cells and the ID for tuberculosis is 10 cells, which organism is more virulent?

A. They are equally virulent. B. Mycobacterium tuberculosis C. Neisseria gonorrhoeae D. It is impossible to determine.

Biology & Microbiology