DNA fingerprinting analyzes the DNA from individuals on the basis of the occurrence of in their genomes. a. repetitive sequences b. abnormalities in chromosome structure c. specific genes d. viral insertions

A scientist wants to study the cytochrome c gene of a fruit fly. The DNA for the gene is extracted and subjected to several treatments. If a disease were identified as being caused by defects in the cytochrome c gene, then the copy isolated could be used for what? A. PCR B. gene therapy C. stem cell work D. DNA fingerprinting

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.

a. c,a,b b. a,b,c c. all bands are of the same size d. b,a,c

You are studying bacterial cells and you find bacteria with a mutation that causes it to produce non-functional ligase. If you allowed that cell to replicate once and then you isolated the DNA from the two newly formed cells what would you expect to find? A. One longer single strand of DNA and many short single strands of DNA B. Two longer single strands of DNA and many short single strands of DNA C. Four longer single strands of DNA and many short single strands of DNA D. Eight longer single strands of DNA and many short single strands of DNA Choose the correct answer above and explain why you chose that answer. Your explanation should discuss the replication of DNA in bacteria and the role of ligase in DNA replication.

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

What are the sources of aminoglycosides, tetracyclines,macrolides, daptomycin, and platensimycin?

Refer to the relative proportions diagram in the first picture. 1. To help reveal patterns in the data, graph the data from the table on the grid provided (the second picture). 2. Write two inferences based on your observations and analysis of the patterns that emerge from the data. Your inferences should give insight into the structure of DNA. 3. Formulate two or three claims about the data in Part 1. Be sure each claim is supported by the data. 4. Using the claims you developed, complete the data table that is provided in the picture (Relative Proportions Chart that is labeled "For question 4".

For DNA amplification using PCR to occur, which of the following are needed?     A. DNA primers     B. thermo stable DNA polymerase     C. Helicase    D. Choices A and B

How can you detect 1 small, very specific, piece of DNA (eg: a gene), among THOUSANDS of other pieces or sequences of DNA from nuclear chromosomes?   a. DNA hybridization b. RNA hybridization c. Use of a radioactive or fluorescent probe d. Colony blotting and hybridization e. Synthetic primers and PCR f. Any of the above methods