Mutations

Genetic mutations can be...

• beneficial, harmful, or neutral

• beneficial only

• harmful only

• neutral only

Tags

NGSS.HS-LS3-2

What Are Mutations?

• change in a nucleotide sequence

• change in appearance of an organism

• random copying of cells

• a duplication of a whole chromosome

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

DNA molecule segment is : TTACGCAAG

The mutated DNA segment is TTACGCAAGG. This is an example of an ________ mutation.

• Substitution

• Insertion

• Inversion

• Translocation

Tags

NGSS.HS-LS3-2

The two kinds of frameshift mutations are:

• Deletion and insertion

• Substitution and silent

Tags

NGSS.HS-LS3-2

Why are insertion and deletion mutations so harmful?

• They shift all of the codons from the mutation on down the line, which changes the amino acid sequence

• Insertion and deletions are not any more harmful than substitution mutations.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2

Would a mutation in the DNA of a skin cell be passed on to an organism's offspring?

• Yes, because any change to the DNA is passed on to the offspring
• Maybe. Sex cells only use half of the body's genetic code. It might get the copy of a gene that wasn't mutated.
• No. Only mutations that occur in the gametes (sex cells) are passed on to the offspring
• Without knowing the animal, it would be hard to tell whether or not the mutation would be passed on.

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A mutation can be passed to offspring only if it takes place in this kind of cell

• skin cell

• gamete cell

• somatic cell

• blood cell

What type of chromosomal mutation is this?

• Inversion
• Translocation
• Deletion
• Duplication

What are two main types of Mutations?

• Genes and Chromosomal
• Genes and Genetic
• Genetic and Repulsive

Tags

NGSS.HS-LS3-2

The chromosome mutation in this picture is known as _________.

• inversion

• deletion

• insertion

• duplication

Tags

NGSS.HS-LS3-2