Trait Variations and Mutations

Mutations

Mutations:

Any change to a gene.

Multiple Choice

Which is the correct order?

• Genes--> Chromosomes --> Proteins --> Traits

• Chromosomes--> Proteins --> Genes --> Traits

• Traits --> Chromosomes --> Proteins --> Genes

• Chromosomes --> Genes --> Proteins --> Traits

Multiple Choice

If a mutation is a change in a gene's DNA, then a mutation can directly affect the ______________ being coded for.

• Chromosome

• Trait

• Gene

• Protein

Mutations can be:

1. Beneficial

2. Harmful

3. Neutral

Multiple Choice

Mutations in many bacteria allow them to survive in our bodies even when we take antibiotics. For the bacteria, this is considered a _____________ mutation.

• Beneficial

• Harmful

• Neutral

Multiple Choice

Some types of mutations can cause cancer. This type of mutation is considered:

• Harmful

• Neutral

• Beneficial

Multiple Choice

Albinism in organisms is an example of a mutation that fails to produce melanin, a useful pigment that protects organisms against the harmful radiation of the sun. 

• Beneficial

• Neutral

• Harmful

Multiple Choice

A red Darwin hybrid tulip "Apeldoorn" with a mutation resulting in half of one petal being yellow.

• harmful

• beneficial

• neutral

Multiple Choice

Hemophilia is a bleeding illness caused by a mutation in the gene that fails to produce blood clotting factor. 

People with this disorder have excessive bleeding during injuries. 

• neutral

• beneficial

• harmful

Multiple Choice

Polyploidy in organisms is a condition of having more than two sets of chromosomes.  

This leads to the production of extra limbs, two heads, webbed feet, extra fingers etc. in animals.

These organisms have difficulty surviving in their environment.

• Neutral

• Harmful

• Beneficial

Multiple Choice

Eye-color mutations.

• Harmful

• Beneficial

• Neutral

Multiple Choice

Mutation that causes "uncombable hair syndrome".

• Harmful

• Neutral

• Beneficial

Multiple Choice

Polydactyl cats are born with extra toes on their paws. This can help certain breeds of cats catch prey.

• Neutral

• Harmful

• Beneficial

Multiple Choice

Feline radial hypoplasia is a genetic mutation that can cause severe pain for the cat.

• Harmful

• Beneficial

• Neutral