+ DNA Technology November 7 th , 2011
Feb 13, 2016
+
DNA TechnologyNovember 7th, 2011
+Journal WriteTrue or False: Mutations are constantly happening to you RIGHT NOW? Explain your answer in atleast 3 complete sentences
+Today you will…Explain the various types
of genetic engineeringGene splicingRecombinant DNACloning
Practice Gene SplicingSplicing Activity
+Genetic EngineeringAny change in DNA is called a mutation .
Sometimes scientists cause mutations for a specific purpose, usually to benefit society in some way.
This is called genetic engineering.Genetic engineering allows humans to create organisms with desirable traits.
+TIME OUTWhich of these results when one
nitrogen base replaces another in a segment of genetic material?
a) an enzyme substrateb) a mutationc) a feedback loopd) an adaptation
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+Gene SplicingGene Splicing: One way of doing this is
using a special type of enzyme that cuts DNA segments in a way that allows the segments to be moved form one organism and attach to the DNA from a completely new organism.
This new DNA is called recombinant DNA.Once that DNA is in the new organism, the
new organism is able to produce new proteins which could result in more desirable traits.
+Gene Splicing Cont.This image shows the process of gene splicing that creates recombinant DNA
+TIME OUTScientists can insert and remove
nucleotides from a DNA strand. Which of these identifies this process?
a) base pairingb) gene splicingc) DNA synthesisd) DNA transcription
+TIME OUTIn the laboratory, scientists remove the gene for
insulin from human chromosomes. They insert the gene into the DNA of bacteria. This causes the bacteria to produce human insulin. The insulin is used to treat diabetes in humans. Which of these describes this process?
a) Meiosisb) Fertilizationc) gene splicingd) DNA fingerprinting
+CloningCloning: a form of asexual reproduction where identical genetic copies are created.
Celebrity Sheep Died at Age 6
+TIME OUTWhen the segment of human DNA that
codes for insulin production is inserted into bacterial DNA, the bacterium begins producing human insulin.Which of these best identifies the process by which human DNA is inserted into bacterial DNA?
a) gene splicingb) crossing-overc) Mutationd) cloning
+Exit TicketMost bacteria do not have the ability to break
down oil that is accidentally spilled into the ocean by tankers. However, scientists can insert a gene into the DNA of a bacterium to give it the ability to break down the oil. This technology is an example of
a) crossing-overb) DNA replicationc) gene splicingd) translation