DNA and mutations

Which organelle is DNA usually found in?

• cell membrane
• vacuole
• chloroplast
• nucleus

Tags

NGSS.MS-LS1-2

NGSS.MS-LS3-1

What are the 4 nitrogen bases?

• adenine, thymine, cytoplasm, and guanine
• adenine, thymine cytosine, and guanine
• adenine, thymine, cytosine, and gylcerol
• adenine, thymine, cytosine, and glucose

Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG

• ATG TGA CAG
• TAC ACT GTC
• GTA AGT GAC
• CAT TCA CTG

Why would it be important to replicate DNA before a cell divides in mitosis?

• In order for genetic information to be transferred into daughter cells.

• In order for the cell to be able to increase in size.

• In order for the DNA to be contained in the nucleus.

• In order for the cell to re-order the DNA sequencing in the new cells.

Tags

NGSS.HS-LS1-4

Most mutations occur randomly

• True

• False

Tags

NGSS.HS-LS3-2

Mutations are always harmful.

• True

• False

Tags

NGSS.HS-LS3-2

An environment becomes colder. Some of the rabbits which live there have a mutation that causes their fur to be longer and thicker allowing them to stay warmer. This is an example of a

• positive mutation

• negative mutation

• neutral mutation

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

NGSS.HS-LS4-4

Between 6,000 and 10,000 years ago a mutation led to blue eyes in humans. This is an example of a

• positive mutation

• negative mutation

• neutral mutation

Tags

NGSS.HS-LS3-2

NGSS.HS-LS3-1

What mutation has occurred here? 
T-G-A-C-C-A
T-G-A-G-C-A

• Substitution
• Deletion
• Insertion
• Frameshift 

Tags

NGSS.HS-LS3-2

DNA molecule segment is : TTACGCAAG
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.

• Substitution
• Deletion
• Insertion
• Inversion

Tags

NGSS.HS-LS3-2