What are TEs? Comment on Are there any distinctive features Why might biologists want to
study what do you know different kinds associated with TEs? What are TES? about transposable
What types of organisms contain these? elements (TEs) in TEs? general? Vague (1); OK (1.5);
Good (3) Vague (1), OK (1.5), Good (3) Vague (1): OK (1.5); Good (3 How might P-elements
have How do P-elements move around Why are Pelements important for entered Drosophila
melanogaster? the genome? Connect your ideas biologists and Drosophila What do you know
What do you know about P-element to the special P-elements used in researchers in particular?
about P-elements structure? How big are the native this lab. What is the connection What do you
know about the Gene in Drosophila? elements? between transposition of mobile Disruption
Project (GDP) in DNA elements and DNA Drosophila? replication? Vague (1): OK (1.5): Good
(3 Vague (1): OK (2): Good (4 Vague (1): OK (2): Good (4
Solution
1.Transposable elements or transposons are defined as the DNA sequence that are able to move
from one location to the other in the genome.They were first discovered by Barbara McClintock
in maize and are also called as the \"jumping genes\".
Transposons are found in almost all organisms starting from bacteria to higher organisms i.e
from prokaryote to eukaryotes and are known to have played a significant role in evolution.
There are two major types of transposons .they are:
Class I transposons and Class II transposons
Class I transposons are called as retrotransposons as they first transcribe the DNA into RNA and
then use the enzyme reverse transcriptase to make a copy of the DNA from RNA and insert it in
a new location.
Class II operate by \"Cut and Paste\" mechanism and contain DNA that moves directly from
place to place.They are cut at their location and are inserted into a new location.Distinctive
features of transposons;
1.One of the most defining property of a transposon is its mobility.
2.They are diverse in nature some move by DNA intermediates (class I) while some move by
RNA intermediates(ClassII)
3.Due to their ability to rearrangement they play a significant role in evolution.
4.some transposons activate or inactivate the genes depending on their position of
insertion.egEnhancement of oncogeneic activity.
Transposons cause deletions and inversions..
What are TEs Comment on Are there any distinctive features Why might.pdf
1. What are TEs? Comment on Are there any distinctive features Why might biologists want to
study what do you know different kinds associated with TEs? What are TES? about transposable
What types of organisms contain these? elements (TEs) in TEs? general? Vague (1); OK (1.5);
Good (3) Vague (1), OK (1.5), Good (3) Vague (1): OK (1.5); Good (3 How might P-elements
have How do P-elements move around Why are Pelements important for entered Drosophila
melanogaster? the genome? Connect your ideas biologists and Drosophila What do you know
What do you know about P-element to the special P-elements used in researchers in particular?
about P-elements structure? How big are the native this lab. What is the connection What do you
know about the Gene in Drosophila? elements? between transposition of mobile Disruption
Project (GDP) in DNA elements and DNA Drosophila? replication? Vague (1): OK (1.5): Good
(3 Vague (1): OK (2): Good (4 Vague (1): OK (2): Good (4
Solution
1.Transposable elements or transposons are defined as the DNA sequence that are able to move
from one location to the other in the genome.They were first discovered by Barbara McClintock
in maize and are also called as the "jumping genes".
Transposons are found in almost all organisms starting from bacteria to higher organisms i.e
from prokaryote to eukaryotes and are known to have played a significant role in evolution.
There are two major types of transposons .they are:
Class I transposons and Class II transposons
Class I transposons are called as retrotransposons as they first transcribe the DNA into RNA and
then use the enzyme reverse transcriptase to make a copy of the DNA from RNA and insert it in
a new location.
Class II operate by "Cut and Paste" mechanism and contain DNA that moves directly from
place to place.They are cut at their location and are inserted into a new location.Distinctive
features of transposons;
1.One of the most defining property of a transposon is its mobility.
2.They are diverse in nature some move by DNA intermediates (class I) while some move by
RNA intermediates(ClassII)
3.Due to their ability to rearrangement they play a significant role in evolution.
4.some transposons activate or inactivate the genes depending on their position of
insertion.egEnhancement of oncogeneic activity.
Transposons cause deletions and inversions.
