Looking at a Tissue Through a Microscope, You Notice That

question 9

Multiple Choice

Looking at a tissue through a microscope, you notice that all of the cells along the free surface of the tissue have microvilli along the free edges of the cells. This would tell you that this tissue has what function?

• A) the need to detoxify many chemicals
• B) a high metabolic rate
• C) phagocytosis
• D) motility
• E) absorption

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Definitions:

Dominant Alleles

Alleles that mask the effect of other alleles for the same gene in heterozygous individuals, determining the phenotype.

Recessive Alleles

Genetic variations that must be present in two copies (homozygous) to express a trait, as opposed to dominant alleles that require only one copy.

Epistasis

An interaction between genes where the presence or absence of alleles of one gene influences the expression of another gene.

Alleles

Alleles are alternative forms of a gene that arise by mutation and are found at the same place on a chromosome, contributing to genetic variation in populations.