Question

How does transposition of a retrotransposon differ from that of a DNA transposon?

How does transposition of a retrotransposon differ from that of a DNA transposon?

Homework Answers

Answer #1

DNA transposons move in the genome by cut and paste mechanism. The original copy of transposons excised from one place and gets integrated at another place. There is no increase in copy number of transposons on each transposition event.

Retrotransposons move in the genome by copy and paste mechanism. one retrotransposon (DNA) makes an RNA copy then this RNA gets converted into DNA by the action of reverse transcriptase then DNA integrates at a new position in the genome. So unlike transposons they involve an RNA intermediate and their copy number increase with each transposition event.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Briefly explain how a transposon is both an example of DNA mutation as well as gene...
Briefly explain how a transposon is both an example of DNA mutation as well as gene transfer.
How does one DNA molecule differ from the other in a double stranded pair? A. In...
How does one DNA molecule differ from the other in a double stranded pair? A. In the sequence of the nitrogenous bases. B. In the spacing of the major and minor grooves. C. In the composition of the sugar-phosphate backbone. D. In the way in which the bases are attached to the sugars.
How does an arbitrager differ from a speculator? How does a speculator differ from a hedger?
How does an arbitrager differ from a speculator? How does a speculator differ from a hedger?
what is transposon? what it does and how it adds genetic variation to a population of...
what is transposon? what it does and how it adds genetic variation to a population of bacteria?
Which of the following statements is FALSE? Nonautonomous DNA transposons are transposons that have mutations in...
Which of the following statements is FALSE? Nonautonomous DNA transposons are transposons that have mutations in their terminal inverted repeats. Inactivation of a gene by the insertion of an autonomous DNA transposon is an unstable mutation; the gene can be reactivated by transposition of the element. piRNA is used to block the movement of transposable elements. Transposable elements can contain genes other than those needed for transposition and still retain the ability to transpose.
Synthesis of DNA begins at the: a. transposon. b. start codon. c. promoter. d. origin of...
Synthesis of DNA begins at the: a. transposon. b. start codon. c. promoter. d. origin of replication.
why does replicative transposition cause more genetic change when compared to simple transposition
why does replicative transposition cause more genetic change when compared to simple transposition
== Transposons Define a transposon: What is transposition? Read the close-up box on page 218, 10th...
== Transposons Define a transposon: What is transposition? Read the close-up box on page 218, 10th ed. Name the geneticist that discovered transposons? _________________________ Two major classes of mutations and describe each. 2 Major Type of mutations Description a) b) 7. What is gene transfer and what is its significance to evolution? What are the two types of gene transfer and provide an example for each? a) b) 8. Discuss the three mechanisms of lateral gene transfer in bacteria: Name...
1. What is the major difference between simple transposons and retrotransposons? 2. How can simple transposition...
1. What is the major difference between simple transposons and retrotransposons? 2. How can simple transposition lead to copy number increase? 3. Briefly explain the role of reverse transcriptase and integrase in retrotransposition. 4. What damage does UV do to DNA? 5. UV damage to DNA is repaired by the Nucleotide Excision Repair Pathway. Briefly explain how UvrB and UvrC repair UV damage in E.coli.
How does an OS differ from a regular Software?
How does an OS differ from a regular Software?