grade 8 Quiz

What pairs with Adenine (A)? 

• Guanine (G)
• Cytosine (C)
• Adenine (A)
• Thymine (T)

What pairs with Thymine (T)?

• Adenine (A)
• Thymine (T)
• Guanine (G)
• Cytosine (C) 

What pairs with Guanine (G)?

• Adenine (A)
• Thymine (T)
• Cytosine (C)
• Guanine (G)

What pairs with Cytosine (C)?

• Guanine (G)
• Cytosine (C)
• Adenine (A)
• Thymine

What are the three types of mutation? 

• Insertion, Deletion, Subsitution
• Deletion, Newstion, Subsitution 
• Newstion, Deletion, Insertion 
• Insertion, Newstion, Substitution 

Normal-
GAG-CTC-GAC-AGA
Mutant
GAG CTC-CAC-AGA

• no mutation
• substitution
• insertion
• deletion

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

• Substitution
• Deletion
• Insertion
• Inversion

Which of the following best describes a DNA molecule?

• double helix
• contains ribose
• made of amino acids
• contains Uracil

Why is DNA important?

• it is very small and very complicated
• it's in everything
• it serves as the blueprint for traits of all living things
• because we eat it every day for energy

What do hurtful mutations do? 

• Decrease chances of survival 
• Increases changes of survival 
• Decreases likelihood of developing cancer
• Increases likelihood of developing cancer