"She is a carrier of the cystic fibrosis trait." This statement acknowledges that this person is 

A. homozygous for the trait.
B. heterozygous for the trait.
C. trisomic.
D. carrying two recessive alleles.


B. heterozygous for the trait.

Biology & Microbiology

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A destructive lesion of the gums, also known as acute necrotizing ulcerative gingivitis, that is caused by oral spirochetes and other bacteria is known as:

a. Vincent's disease. b. primary syphilis. c. chancres. d. Weil syndrome.

Biology & Microbiology

The electrons at the lowest energy level in the neon atom depicted in the figure above are found in

which orbital?

a. 1s b. 2s c. 2px d. 2py e. 2pz

Biology & Microbiology

Transmembrane proteins involved in detecting external chemical signals and relaying that information to the cell are known as ________ proteins

Fill in the blank with correct word.

Biology & Microbiology

Each of the following requires 12 carbon atoms. Which of the arrangements of carbon atoms has the greatest entropy?

A) 12 molecules of carbon dioxide, CO2 B) 2 molecules of the monosaccharide glucose, C6H12O6 C) 4 molecules of the monosaccharide pyruvate, C3H4O3 D) 1 molecule of the disaccharide maltose, C12H22O11

Biology & Microbiology