Which of the following is an example of epigenetics? a. X-inactivation. b. metagenomic analysis of microbial communities. c. using proteins to inhibit transcription. d. using PCR to amplify copies of genes

You have just discovered a protein in mice that may be aneffective cure for cancer, but it is present only in tiny amounts.Describe the steps you would use to produce this protein intherapeutic amounts. Which host would you want to clonethe gene into and why? Which host would you use to expressthe protein in and why?

What happens to an organism (plant, animal, or microorganism) during genetic modification? A. Fewer desirable genes are transferred to a new species. B. Genes are removed from one organism and transferred to another. C. Plants or animals are given traits that they typically have. D. All of the above

The ab initio approach finds genes by looking for a. common sequences found in most genes. b. similarity in sequence with known genes. c. mRNA with the use of in situ hybridization. d. mutant phenotypes

Which of the following is true?   a. Viruses have been used to introduce certain genes into humans.   b. PCR can be used in tests for inherited diseases     c. All the above   d. DNA chips can carry sequences from over 1000 gene sequences on one chip.

Which of the following methods use(s) a labeled nucleic acidprobe, such as a labeled fragment of DNA?a. Site-directed mutagenesis                c. Western blottingb. Northern blotting                             d. Both a and b

A gene knockout is a genea. whose function has been inactivated.b. that has been transferred to a different species.c. that has been moved to a new location in the genome.d. that has been eliminated from a species during evolution.

which of the following can be used to stimulate an organism's immune system? A. Restriction Enzymes B. DNA Ligase C. Sticky Ends D. Monoclonal Antibodies

Which of the following natural cellular process does PCR use to amplify a target DNA? A. Gene Expression B. DNA symthesis C. Transcription of DNA D. Translation

e. coli is commonly found in the human Microbiome. while most strains are harmless some can cause various illnesses ranging from urinary track infections to severe gastroenteritis. which of the following is a primary mechanism by which e. coli obtains its pathogenicity? A. Vertical gene transfer from parent to offspring B. Endosymbiosis with other bacteria C. Mutation in the bacterial chromosome D. Horizontal gene transfer from other Bacteria or the environment