If a Trait Is Influenced to Some Degree by Genetic

question 93

Multiple Choice

If a trait is influenced to some degree by genetic factors, then which of the following pairs should be most similar to one another?

• A)monozygotic twins
• B)parent and child
• C)dizygotic twins
• D)brother and sister

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Definitions:

RNA Interference

In this biological process, RNA molecules counteract gene expression or translation by neutralizing particular mRNA molecules.

Cleaving DNA

The process of making precise breaks in the strands of DNA, often used in genetic engineering and molecular biology studies.

Hox Genes

Clusters of homeobox-containing genes that specify the anterior–posterior axis of various animals during development.

D. Melanogaster

Drosophila melanogaster, a species of fruit fly used extensively in genetic research due to its simple genetics and short life cycle.