grade 9 science biology: reproduction. 305-05 compare factors that may lead to changes in a cells...

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 Mutations are changes in DNA  Usually made _________  They can be useful, harmful or have no effect  _________  https://www.youtube.com/watch?v=GieZ3pk9YVo Mutations are…

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Page 1: Grade 9 Science Biology: Reproduction. 305-05 Compare factors that may lead to changes in a cells genetic information: -Mutations caused by nature -Mutations

Grade 9 Science

Biology: Reproduction

Page 2: Grade 9 Science Biology: Reproduction. 305-05 Compare factors that may lead to changes in a cells genetic information: -Mutations caused by nature -Mutations

305-05Compare factors that may lead to changes in a cell’s genetic information:-Mutations caused by nature-Mutations caused by human

Mutations: how they happen and their effects

Page 3: Grade 9 Science Biology: Reproduction. 305-05 Compare factors that may lead to changes in a cells genetic information: -Mutations caused by nature -Mutations

Mutations are changes in DNA

Usually made _________ They can be useful, harmful

or have no effect _________ https://www.youtube.com/watch?v=GieZ3pk9YVo

Mutations are…

Page 4: Grade 9 Science Biology: Reproduction. 305-05 Compare factors that may lead to changes in a cells genetic information: -Mutations caused by nature -Mutations

Certain events can increase the probability of mutation

Radiation: _________ Temperature extremes:

_________ Chemical exposure: _________

Environmental causes

Page 5: Grade 9 Science Biology: Reproduction. 305-05 Compare factors that may lead to changes in a cells genetic information: -Mutations caused by nature -Mutations

Mutations within the genes can happen in different ways

Reversal: _________ Deletion: _________ Duplication: _________ Replacement: _________

Different Kinds of Mutations

Page 6: Grade 9 Science Biology: Reproduction. 305-05 Compare factors that may lead to changes in a cells genetic information: -Mutations caused by nature -Mutations

_________ _________ Frequently used: cows, sheep,

goats and pigs To make: milk proteins,

medicine, blood clotting factors https://www.youtube.com/

watch?v=UqaSi1bYlp0

When we manipulate the genetics of an organism by inserting genes from another

Animals can be used to create large complex proteins for human to use

How it happens: _________

Transgenics

Page 7: Grade 9 Science Biology: Reproduction. 305-05 Compare factors that may lead to changes in a cells genetic information: -Mutations caused by nature -Mutations

1. What is a gene?2. What is a mutation? Why is it important? What can cause it

happen?3. What are some examples of ways chromosomes mutate?4. Do some research, how can a transgenic organism be used?5. It is estimated that every human carries between 5 and 8 harmful

genes. Why do you think that more people are not born with inherited diseases?

Practice Questions 1

Page 8: Grade 9 Science Biology: Reproduction. 305-05 Compare factors that may lead to changes in a cells genetic information: -Mutations caused by nature -Mutations

The class will be divided into 2 groups

The topic is “Genetically Modified Foods”: Yes or No?

You will need to research what exactly is s Genetically Modifiied food, and find out if it is good or bad for us

Also, find out what modified foods we eat hear in the UAE

(feel free to bring in video aids)

Debate!

Page 9: Grade 9 Science Biology: Reproduction. 305-05 Compare factors that may lead to changes in a cells genetic information: -Mutations caused by nature -Mutations

1. Research the Human Genome Project. What is it? What is it’s purpose? How can it help?

2. Research transgenics: what are some human proteins that can be produced by bacteria?

3. Research transgenics: what are some human proteins that can be produced by cows , sheep or pigs?

4. Why do you think that bacteria is used for some but not for all proteins?

Practice Questions 2

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