Current models for the origin of genetic information flow regard which of the following processes as probably the last one to evolve (under natural conditions in the history of life)? direct translation of proteins from a DNA template self-replication of RNA from an RNA template transcription of RNA from a DNA template translation of proteins from an RNA template reverse transcription of DNA from an RNA template

DNA polymerase occasionally incorporates the wrong nucleotide during DNA replication. If left unrepaired, the base-pair mismatch that results will lead to mutation in the next replication. As part of a template strand, the incorporated wrong base will direct the incorporation of a base complementary to itself, so the bases on both strands of the DNA at that position will now be different from what they were before the mismatch event. The MER-minus strain of yeast does not have a functional  mismatch excision repair system, but it has normal base excision repair and nucleotide excision repair systems. Which of the following statements is correct about differences in the mutation spectrum between MER-minus and wildtype yeast? More than one answer is correct. Options:   More point mutations will arise in MER-minus yeast.   Fewer point mutations will arise in MER-minus yeast as compared with wildtype.   Of the total point mutations that…

Suppose you have been directed to find new enzymes to use in the breakdown of wood in order to process biofuel (switchgrass, for example). Suppose you wanted to use fungal or bacterial DNA from the environment in order to do so. DNA can be unwound from the double stranded double helix into single strands, amplified, separated on gels by size, stained with dyes. It can be mutated by a variety of means. It can be sequenced. Describe one or more of the ways that you might manipulate DNA towards the stated goal. Relate the technology you plan to utilize to the structure of DNA. (You can break this into multiple posts, as multiple procedures might be used).

If you were to sequence a human genome today, how would the sequencing differ from that done during the Human Genome Project? Choose only the best answer. You would still use Sanger sequencing. You would still assemble the sequencing reads into a genome using bioinformatics. You still need to clone the DNA fragments prior to sequencing them. All three of the other statements are true.