Chapter 20 - DNA Technology and Genetic Engineering.pptx

The enzyme that cuts DNA at specific points is the _____. DNA polymerase restriction enzyme DNA ligase palindromic The enzyme that cuts DNA at specific points is the _____. restriction enzyme These are enzymes that cut the bonds between specific base pairs in a DNA strand. © 2017 Education, Inc. True or False? PCR can be used to produce very large numbers of cloned, functional genes. True False © 2017 Education, Inc. True or False? PCR can be used to produce very large numbers of cloned, functional genes. False PCR works best with smaller portions of a gene, at this time, not with functional genes. © 2017 Education, Inc. DNA fingerprinting identifies _____. junk DNA between useful genes genes specific to the individual in question RNA sequences specific to the target genes the number of telomeres present © 2017 Education, Inc. DNA fingerprinting identifies _____. junk DNA between useful genes The lengths of repeating “junk” DNA vary between individuals, so the sizes of the DNA fragments resulting from the treatment with restriction enzymes are different for each individual. © 2017 Education, Inc. True or False? Genes from different species are introduced into bacteria to produce vaccines. True False © 2017 Education, Inc. True or False? Genes from different species are introduced into bacteria to produce vaccines. True Bacteria are used as the “factories” to produce large amounts of vaccine cheaply. Specific genes from other species are introduced through plasmids, causing the bacteria to produce the wanted vaccine. © 2017 Education, Inc. Plasmids can be used to transmit wanted genetic material into _____. bacteria only bacteria and plants bacteria and animals bacteria, viruses, and plants © 2017 Education, Inc. Plasmids can be used to transmit wanted genetic material into _____. bacteria and plants Animals do not take up plasmids as easily as bacteria and plants do, adding to the difficulty of producing transgenic animals. © 2017 Education, Inc. A promising vector for transfer of genes into humans is _____. a new plasmid direct injection into ova a retrovirus a nonpathologic bacteria © 2017 Education, Inc. A promising vector for transfer of genes into humans is _____. a retrovirus Although the other methods are theoretically possible in humans, a retrovirus causes the attachment of the nucleic acids it is carrying directly to the chromosomes in the host cell, ensuring the transmission of the material to successive generations of the cells. © 2017 Education, Inc. Golden rice is genetically modified to contain high levels of _____. all of the essential amino acids vitamin C essential fatty acids beta carotene © 2017 Education, Inc. Golden rice is genetically modified to contain high levels of _____. beta carotene Golden rice has been genetically modified to produce high levels of beta carotene, a precursor of vitamin A. © 2017 Education, Inc.