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What are bits of DNA that literally jump from one chromosome to another called?
Transposons are DNA sequences that move from one location on the genome to another
Why are mutations in reproductive cells so dangerous?
Mutations in reproductive cells (sperm/egg cell) can be caused by X rays and this can lead to birth defects.
What kills cancer cells by reversing the mutations that caused them to be cancer cells?
chemotheraphy
What is stickler syndrome caused by?
It is inherited disorder caused by mutations in certain genes involved in formation of a protein called collagen.
Changes in a DNA sequence caused by substitution of one nucleotide for another?
Point mutations
What is the name for simplest transposable elements?
transposons
What percent of the human genome is composed of these transposable sequences?
transposable elements make up 50% of the human genome
What are non-autonomous transposable elements in Biology?
Non-autonomous transposable elements (TE) are mobile genetic elements. They are DNA segments that can move from one position to another in the genome. Nonautonomous TE's cannot transpose by themselves because they lack the transposase gene that autonomous TEs have. Nonautonomous TE's require autnomous elements to transpose, and their insertions are stable because they can't move by themselves - unlike autonomous TEs.
What are Barbara mcclintock kids names?
Barbara McClintock did not have any children. She was a pioneering geneticist known for her work on transposable genetic elements in maize.
What is spontaneous and induced mutations?
Mutations which are artifically induced with the help of mutagenic agents are called induced mutations
What is variation caused by?
It is caused by crossing over in sexual reproduction and random mutations in DNA.
What are three ways transposable elements are thought to have contributes to the evolution of the genome?
Promote recombinationDistrupt cellular genes or control elementsCarry entire genes or individual exons to new locations
DNA insertion mutations may be caused by the invasion of?
Viruses
What type of mutations were caused by the chernobyl accident?
um.....yes?
How do gene mutations happen?
mutation are caused by radiation and are 99.9% harmful
What are bits of DNA that literally jump from one chromosome to another called?
Transposons are DNA sequences that move from one location on the genome to another
Why are mutations in reproductive cells so dangerous?
Mutations in reproductive cells (sperm/egg cell) can be caused by X rays and this can lead to birth defects.
