Scientists' Ability to Reconstruct Evolutionary History Has Been Most Enhanced

question 181

Multiple Choice

Scientists' ability to reconstruct evolutionary history has been most enhanced in recent decades by

• A) new fossil-hunting techniques.
• B) advances in anatomical dissection.
• C) improved microscopic technologies.
• D) accurate genetic sequencing techniques.
• E) an increase in research in animal developmental biology.

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Definitions:

Rod-Shaped Structures

In biology, refers to cells or parts of cells that are elongated and cylindrical, often found in the retina where they are sensitive to light but not color.

Chromosomes

are long strands of DNA found in the nucleus of cells that carry genetic information necessary for reproduction, growth, and maintenance of organisms.

Genes

Genes are the basic units of heredity in living organisms, made up of DNA, that carry the instructions for the development, functioning, and reproduction of cells.

Dominant Gene

A gene that is expressed in the phenotype over a recessive gene when an individual is heterozygous for a particular trait.