Bio Genetics L4.1 Review

Where do we get our DNA from?

• Mom's egg cell

• Dad's sperm cell

• The environment

• Body cells

What do organisms use their DNA for?

• As a source of energy for cellular processes
• To regulate body temperature
• To communicate with other organisms
• Store information/instructions to build proteins

What are mutations?

• Changes in the cell structure
• Changes in the RNA sequence
• Changes in the DNA base sequence

• Changes in the protein sequence

When you change the instructions ​( (a)   ), the final product (​ (b)   ) will change

• DNA
• proteins
• RNA
• cell

Somatic mutations happen in _ cells' DNA.

• bacterial
• body

• plant
• reproductive

True or false:

Somatic mutations CAN be passed down to children (offspring).

• True

• False

True or false:

Hereditary mutations CAN be passed down to children (offspring).

• True

• False

What are hereditary mutations?

• Mutations caused by environmental factors
• Changes in DNA that only affect the individual
• Genetic alterations that skip a generation
• DNA changes from parents' sperm/egg cells to their offspring

What are "de novo" mutations?

• Mutations that only occur in non-human organisms
• Genetic mutations that occur for the first time (new) in an individual

• Mutations inherited from parents
• Mutations caused by environmental factors

Why aren't family members exactly alike?

• Genetic variation from mutations

• Because they have different favorite colors
• Due to different astrological signs
• Because they are all clones