Web Users Spend

question 75

Multiple Choice

Web users spend

• A) 20% of the time looking above the page fold, and 80% below the page fold.
• B) 80% of the time looking above the page fold, 20% below the page fold.
• C) 20% of the time looking above the page fold, 28% below the page fold.
• D) 28% of the time looking above the page fold, 20% below the page fold.

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Definitions:

Bottleneck Effect

Type of genetic drift; occurs when a majority of genotypes are prevented from participating in the production of the next generation as a result of a natural disaster or human interference.

Gene Pool

The total collection of genes within a population, representing the variety of genetic information available for traits and potential evolution.

Hardy-Weinberg Formula

A mathematical equation that predicts that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of evolutionary influences.

Recessive Trait

A genetic feature that is not expressed in the phenotype unless both alleles for the trait are inherited, one from each parent.