The Southern blotting technique depends on similarities between the sequences of probe RNA and experimental RNA similarities between the sequences of probe protein and experimental protein similarities between the sequences of probe DNA and experimental DNA the molecular mass of proteins TRUE ANSWER : ? YOUR ANSWER : ?
Problems in obtaining large amounts of proteins encoded by recombinant genes can often be overcome by using YACS all of these expression vectors BACS TRUE ANSWER : ? YOUR ANSWER : ?
What is the normal role of restriction endonucleases in bacterial cells? To degrade invading phage DNA To degrade the bacterial chromosome into small pieces during replication To produce RNA primers for replication All of these TRUE ANSWER : ? YOUR ANSWER : ?
Agrobacterium tumefaciens is a disease in humans that causes loss of sight a disease in humans that causes loss of weight a bacterium that can be used to introduce DNA into plants a fungi that is used to produce antibiotics in large amounts TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is obtained using processed mRNA molecules as a template? cDNA tDNA rDNA mDNA TRUE ANSWER : ? YOUR ANSWER : ?
A short molecule containing 2-20 nucleotide is oligonucleotide plasmid vector mononucleotide TRUE ANSWER : ? YOUR ANSWER : ?
A genomic library is a collection of many clones possessing different DNA fragments from the same organisms bound to vectors a database where the sequence of an organism's genome is stored a book that describes how to isolate DNA from a particular organism a place where the information of the genetic organization of organisms are kept. TRUE ANSWER : ? YOUR ANSWER : ?
Bacterial cells protect their own DNA from degradation by restriction endonucleases by having anti restriction endonucleases not producing any restriction endonucleases methylating the DNA at the sites that the enzyme recognizes deleting all recognition sites from the genome TRUE ANSWER : ? YOUR ANSWER : ?
Which type of restriction endonuclease cuts the DNA within the recognition site? All of the these Type III Type II Type I TRUE ANSWER : ? YOUR ANSWER : ?
The advantage of using DNA polymerases from thermophilic organisms in PCR is that the DNA polymerases of these bacteria never make mistakes while replicating DNA All of these the DNA polymerases of these bacteria are much faster than those from other organisms the DNA polymerases of these bacteria can withstand the high temperatures needed to denature the DNA strands TRUE ANSWER : ? YOUR ANSWER : ?