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DNA and Its Genes
Directions: To answer the questions, read the paragraph below, then click the boxes and start typing.
Human DNA totals over 6 feet in length and contains more than 3 billion base pairs.
These base pairs are arranged in specific sequences called genes. Humans are
Gene for
estimated to have between 20,000 and 25,000 genes scattered throughout
Enzymes
their DNA. Each one of these genes determines a trait that can be expressed,
such as eye color, height, and enzyme composition. In order for a cell to
express these traits, it must take the instructions from the DNA and
Gene for
use them to make a protein. This process is called protein synthesis
Eye Color
1.
are specific base sequences found in DNA that control traits.
2. Give one example of a trait that a gene controls:
Gene for
Dimples
3.
is the process of creating proteins from DNA instructions.
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