Each of the Following Is One of the Top Seven

question 39

Multiple Choice

Each of the following is one of the top seven social network sites in the United States, in terms of monthly unique visitors, except:

• A) Tumblr.
• B) Myspace.
• C) Instagram.
• D) Pinterest.

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Definitions:

Recessive Trait

A genetic trait expressed only when two copies of the gene are present, one from each parent.

Alleles

Different versions of a gene that determine distinct traits and can be passed from parents to offspring.

Heterozygous

Refers to having two different alleles for a single trait in an organism's pair of genes.

Homozygous

A genetic condition where an individual inherits the same alleles for a particular gene from both parents.