Genetics Terms

Created by mspeckham Teacher

9th grade science PRS

chromosome

threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next

gene

A segment of DNA on a chromosome that codes for a specific trait

Allele

one of the alternative forms of a gene that governs a characteristic, such as hair color

homozygous

an organism that has two identical alleles for a trait

heterozygous

term used to refer to an organism that has two different alleles for the same trait

dominant

trait that will show up in an organism's phenotype if gene is present

recessive

The inherited characteristic often masked by the dominant characteristic and not seen in an organism.

Gregor Mendel

the father of genetics

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set