In humans, a gene for free earlobes dominates a gene for attached earlobes. These alternative forms of a gene for earlobe shape are examples of 

A. loci.
B. genomes.
C. alleles.
D. pleiotropy.


C. alleles.

Biology & Microbiology

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What is the result of crossing over?

a. mutation b. sex selection c. recombination d. gene linkage

Biology & Microbiology

On the accompanying illustration, "A" and "B" should be labeled, respectively, ____ and _____

a. consumers; producers b. decomposers; producers c. producers; redistributors d. producers; consumers e. consumers; decomposers

Biology & Microbiology

Animals have the ability to generate glucose from proteins during prolonged postabsorptive states.

Answer the following statement true (T) or false (F)

Biology & Microbiology

All of the following are part of a prokaryotic cell except

a. DNA. b. a cell wall. c. a plasma membrane. d. ribosomes. e. an endoplasmic reticulum.

Biology & Microbiology