**A note from yesterday: Several of you told me that you could use more practice, more videos, or more pictures to help you understand protein synthesis a little better. I'm working on that. For today, I'm going to have you get an overview of mutations.** -Ms. Dolan
We have learned that cells read DNA messages to make proteins. Proteins are what cells are made of and how cells do their jobs.
Any change in DNA or RNA is called a mutation. Mutations happen all the time but usually our cells notice and fix them.
Sometimes mutations don't get fixed, but they don't affect the production of proteins so we don't even notice any sign of mutations.
Other times, mutations cause different proteins to be made or proteins to be made differently. The result can be a change in how cells work, a change in how organisms look, a genetic disorder, or a disease like cancer. We often associate mutations with bad things. But it is possible that mutations have positive results.
Today your task is to read an introduction to mutations. You will learn what mutations are and the different types of mutations that can happen.
Assignment:
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We have learned that cells read DNA messages to make proteins. Proteins are what cells are made of and how cells do their jobs.
Any change in DNA or RNA is called a mutation. Mutations happen all the time but usually our cells notice and fix them.
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| Image from https://evolution.berkeley.edu |
Sometimes mutations don't get fixed, but they don't affect the production of proteins so we don't even notice any sign of mutations.
Other times, mutations cause different proteins to be made or proteins to be made differently. The result can be a change in how cells work, a change in how organisms look, a genetic disorder, or a disease like cancer. We often associate mutations with bad things. But it is possible that mutations have positive results.
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| Effects of mutations can be positive, neutral, or negative. |
Assignment:
- Read the Mutations Article and answer the four questions on the last page.
- Send the answers to the four review questions to Ms. Dolan (email adolan@hccs481.org or Instagram DM ms.dolans_science)
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