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Males are more often affected by X-linked sex traits than females because 

Following the scientific method, which of the following is the correct order of steps?

In facilitated diffusion, what is the role of the transport protein?

A dehydration reaction (or condensation reaction) is the process in which _____.

What is the source of the extra chromosome 21 in an individual with Down syndrome?

Use the following map of four genes on a chromosome to answer the question. Between which two genes would you expect the highest frequency of recombination? 

Which of the following occurrences describes how recombination between linked genes comes about?

What is an allele? 

Variations in the reactive properties of different organic molecules are most closely associated with _____.

Variations in the reactive properties of different organic molecules are most closely associated with _____.