True or False – Direct repair mechanisms are the only type of repair mechanism t

Question

True or False – Direct repair mechanisms are the only type of repair mechanism that removes any incorrect nucleotides from the strand after DNA polymerase has proofread the strand and identified errors.

What kind of mutation changes the reading frame of the sequence when being coded for proteins?

What kind of base substitution mutation can be observed in the following DNA sequence?

Original:
AAA CTA GTG CCC TTT AGG GGG

Mutation sequence:
AAA CTA GCG CCC TTT AGG GGG

Which chemical change has been observed in both spontaneous and induced or environmentally caused mutations?

Is DNA damage typically repaired using a single mechanism?

True or False – Wobble base pairing occurs when bases that do not normally pair are able to due to the flexibility of the DNA molecule.

Explanation / Answer

True or False – Direct repair mechanisms are the only type of repair mechanism that removes any incorrect nucleotides from the strand after DNA polymerase has proofread the strand and identified errors.

The answer is False, becuase in BER (base excision repair mechanims) only incorrect nitrogen base will be replced.

What kind of mutation changes the reading frame of the sequence when being coded for proteins?

Frameshit mutations - Deletion or addition of nucleotide

What kind of base substitution mutation can be observed in the following DNA sequence?

AAA CTA GTG CCC TTT AGG GGG
AAA CTA GCG CCC TTT AGG GGG

The 8th nucleotide T replaced with C. It is an example for Transition mutation.

ACCORDING TO CHEGG GUIDELINES WE HAVE TO ANSWER ONE QUESTION AT A TIME. POST THE REST AS SPERATE QUESTIONS, THEN I CAN HELP YOU.

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.