When describing people as "lactose intolerant," you are describing

A. their phenotype.
B. their genome.
C. their alleles.
D. their genotype.
E. none of these


Answer: A

Biology & Microbiology

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All cells have DNA to carry genetic information, a plasma membrane which serves as a selective barrier, and

mitochondria for the generation of energy.

Indicate whether the statement is true or false.

Biology & Microbiology

Puppies born too large experience difficulties during birthing and tend to have respiratory and other problems. Puppies born too small often can’t compete with their siblings for their mother’s milk. Thus, puppies of intermediate size have a survival advantage. This is an example of ____ selection.

a. directional b. stabilizing c. disruptive d. frequency e. allelic

Biology & Microbiology

The periplasmic space separates the plasma from the outer membrane in Gram-negative bacteria

a. true b. false

Biology & Microbiology

Which of the following represents a dihybrid cross?

A) YY x pp B) YYyy x PPpp C) Yp x YY D) YP x Yp E) YyPp x YyPp

Biology & Microbiology