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Unit 4 Genetics and Heredity Study Guide Below are some key
Unit 4 Genetics and Heredity Study Guide Below are some key

... 2. What  are  the  four  major  types  of  blood?    How  are  they  different?    What  is  Rh  factor  and   why  is  it  important  in  blood  typing?   3. What  type  of  blood  is  the  universal  donor  and  why?    Univ ...
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Anth. 203 Lab, Exercise #1

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Photosynthesis - Cathedral High School

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9.4 Genetic Engineering

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9.4 Genetic Engineering KEY CONCEPT DNA sequences of organisms can be changed.

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coding and non-coding functions of the genome

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CH 20 DNA TECHNOLOGY - Ed W. Clark High School

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Mechanisms of Evolution part 2

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Chapter 12.1 Notes

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Helitron (biology)

A helitron is a transposon found in eukaryotes that is thought to replicate by a so-called ""rolling-circle"" mechanism. This category of transposons was discovered by Vladimir Kapitonov and Jerzy Jurka in 2001. The rolling-circle process begins with a break being made at the terminus of a single strand of the helitron DNA. Transposase then sits at this break and at another break where the helitron targets as a migration site. The strand is then displaced from its original location at the site of the break and attached to the target break, forming a circlular heteroduplex. This heteroduplex is then resolved into a flat piece of DNA via replication. During the rolling-circle process, DNA can be replicated beyond the initial helitron sequence, resulting in the flanking regions of DNA being ""captured"" by the helitron as it moves to a new location.
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