You are on a research project to study rice. Your want to use reverse transcription PCR to amplify the OsMEI28 cDNA from the plant and create a plasmid that contains the cDNA sequence in a vector. Briefly describe the steps that you would need to take.

Transcribe and translate the following DNA sequence (nontemplate strand): 5’-ATGGCCGGTTATTAAGCA-3’

generated after a cDNA library is made unique sequences in the genome useful for mapping using sequence information all of the above

Which of the following best describes the process of DNA sequencing? a. DNA is separated on a gel, and the different bands are labeled with fluorescent nucleotides and scanned with a laser. b. A laser is used to fluorescently label the nucleotides present within the DNA, the DNA is run on a gel, and then the DNA is broken into fragments. c. Nucleotides are scanned with a laser and incorporated into the DNA that has been separated on a gel, and then the DNA is amplified with PCR. d. Fragments of DNA are produced in a reaction that labels them with any of four different fluorescent dyes, and the fragments then are run on a gel and scanned with a laser. e. DNA is broken down into its constituent nucleotides, and the nucleotides are then run on a gel and purified with a laser.

What Are Clones? Cloning is a general term used for whole organisms and DNA sequences. Define what we mean when we say we have a clone.

Cloning Genes Is a Multistep Process The following DNA sequence contains a six-base sequence that is a recognition and cutting site for a restriction enzyme. What is this sequence? Which enzyme will cut this sequence? (See Figure 13.5 for help.) 5 CCGAGGAAGCTTAC 3 3 GGCTCCTTCGAATG 5

The prospect of using gene therapy to alleviate genetic conditions is still a vision of the future. Gene therapy for adenosine deaminase deficiency has proved to be quite promising, but many obstacles remain to be overcome. Currently, the correction of human genetic defects is done using retroviruses as vectors. For this purpose, viral genes are removed from the retroviral genome, creating a vector capable of transferring human structural genes into sites on human chromosomes within target-tissue cells. Do you see any potential problems with inserting pieces of a retroviral genome into humans? If so, are there ways to combat or prevent these problems?

Put the following tasks in the order they would occur during a DNA cloning experiment. a. using DNA ligase to seal DNA fragments into vectors b. using a probe to identify a clone in the library c. sequencing the DNA of the clone d. making a DNA library of clones e. cutting genomic DNA with restriction enzymes

Describe two of the applications for genome mapping.

Match each term with the most suitable description. ___ DNA profile a. GMO with a foreign gene ___ Ti plasmid b. alleles commonly contain them ___ cDNA synthesis c. a persons unique collection of short tandem repeats ___ SNP d. requires reverse transcriptase ___ transgenic e. cuts DNA ___ restriction enzyme f. used in plant gene transfers