Mutations

Any change in the sequence of DNA is...

• transgenic shift
• Single Genotype
• Monohybrid Trait
• Mutation

Tags

NGSS.HS-LS3-2

Original DNA: CAT GAT CCA

New DNA: CAT TGA TCC A

What mutation occurred?

• deletion

• substitution

• tranverse

• insertion

Tags

NGSS.HS-LS3-2

Mutated DNA sequences that can be passed from parent to offspring --

• occur in somatic cells (body cells)
• occur in gametic cells (sex cells)
• are rejected by meiosis
• only occur if the parent is exposed to harmful substances

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Why are insertion and deletion mutations so harmful?

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

• They insert things that an organism doesn't need.

• They often delete things that organisms need.

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

Tags

NGSS.HS-LS3-2

What disease is characterized by abnormally shaped red blood cells?

• hemophilia
• sickle cell anemia
• phenylketonuria
• Huntington's 

Tags

NGSS.HS-LS3-2

This karyotype is taken from a  ___________.

• normal female
• normal male
• male with Klinefelter's syndrome
• female with Turner's syndrome

Tags

NGSS.HS-LS3-1

This karyotype is taken from a  ________.

• female with Turner's syndrome
• male with Down's syndrome
• female with Down's syndrome
• normal female

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Which disorder is characterized by degradation of the nervous system and usually results in death during infancy?

• Tay-Sachs
• Cystic fibrosis
• Huntington's
• PKU

A pair of identical chromosomes shown in a karyotype, one inherited from mom, and one inherited from dad are called

• sister chromotids
• centromeres
• homologous chromosomes
• autosomes

Tags

NGSS.HS-LS3-1

Down's syndrome occurs because of a(n)

• missing sex chromosome
• extra sex chromosome
• additional 21st chromosome
• additional 18th chromosome

Tags

NGSS.HS-LS3-1