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Laabri

30.1 - Do first - Mutations

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Last updated over 1 year ago
7 Nsɛmmisa
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Asemmisa {{asɛmmisaAhyɛnsode}}
1.

Categorize the three types of mutations

  • Genes are switched to different places, deleted, or inserted into a chromosome.

  • The cell does not divide correctly in mitosis or meiosis and the daughter cells contain an unequal amount of chromosomes.

  • DNA bases are matched to an incorrect base, deleted, or inserted into a DNA strand improperly.

  • Chromosmal mutation

  • Mutation in the DNA code

  • Nondisjunction

Asemmisa {{asɛmmisaAhyɛnsode}}
2.

Label the diagram with the following words from the word bank:

Word bank: DNA base deletion DNA base substitution DNA base insertion

Asemmisa {{asɛmmisaAhyɛnsode}}
3.

The following shows...

Asemmisa {{asɛmmisaAhyɛnsode}}
4.

The image below shows the mutation known as "". In this type of mutation an is added to the DNA code. The extra base added in this example is .

Mmuae Afoforo a Wobɛpaw:
diatom
thymine
cytosine
guanine
extra base
DNA insertion
uracil
DNA substition
adenine
Asemmisa {{asɛmmisaAhyɛnsode}}
5.

The type of mutation seen below is a . The reason why is because a DNA base was from the DNA sequence. The DNA then shifts in the frame.

Mmuae Afoforo a Wobɛpaw:
DNA substitution
removed
added
DNA deletion
DNA insertion
Asemmisa {{asɛmmisaAhyɛnsode}}
6.

The image below shows an example of...

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

DNA framshifts are caused by (adding) or (removing) DNA. Frameshifts are usually not good for an organism and leads to death. Every amino acid brought by before the mutation will be good but after deleting or removing DNA every made after is incorrect. So an incorrect protein is made.

Mmuae Afoforo a Wobɛpaw:
tRNA
deleting
amino acid
inserting