In the Late 1700s, Two Populations of Minnows Became Isolated

question 82

Short Answer

In the late 1700s, two populations of minnows became isolated when an earthquake altered the path of a river. Now the populations can no longer successfully breed with each other even when they are both moved to the same pond. These organisms have undergone _________speciation.

Understand the structure and complementary base pairing of DNA.

Identify the tools and techniques used in determining the structure and function of DNA.

Comprehend the role of DNA as genetic material through historical experiments.

Recognize the various components and structures associated with DNA such as nucleotides and the double helix.

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Definitions:

Chromosomes

Structures in the cell nucleus that consist of chromatin and contain the genes. The chromosomes become visible under the microscope as distinct structures during cell division.

Proteins

Large biomolecules composed of one or more chains of amino acids, which perform a vast array of functions within organisms.

Cytoplasm

The plasma membrane and cell contents with the exception of the nucleus.

Nucleus

The membrane-bound organelle in eukaryotic cells that contains most of the cell's genetic material.