What is the function of reverse transcriptase in retroviruses?     converts host cell RNA into viral DNA     translates viral RNA into proteins     uses viral RNA as a template for DNA synthesis     destroy the host cell's DNA     uses viral RNA as a template for making complementary RNA strands

What is the function of DNA ligase? put DNA together are involved in transcription break down DNA fix the mismatch pairing are part of the ribosomes synthesis

Which form of horizontal gene transfer is shown in the following diagram? Transformation Conjugation Transduction MacBook Air DD F8

What advantageous uses have viruses been shown to have? The activities of viral genes mimic those of host genes so they are useful for studying mechanisms of DNA replication and gene expression in their much more complex hosts. O Bacteria-killing viruses may play an increasing role in the war against bacterial pathogens. O All are correct. They can be used as a means to introduce foreign genes into human cells, which may serve as a basis for treatment of human diseases by gene therapy. O Insect-killing viruses may play an increasing role in the war against insect pests.

Which RNA polymerase produces the larger ribosomal RNAs?1. RNA polymerase 2 2. RNA polymerase 3 3. rNA polymerase 1 4. RNA polymerase 1 & 2

Which statement is false regarding plasmids? Circular dsDNAs that reside in bacterial cells Replicate independently from host cell Encode no more than 1-2 genes that benefit the host cell Called episomes when they incorporate into the host cell genome Classified by what type of host cell they infect

Plasmids usually contain a gene for to a make make it easy to grow only colonies of bacteria that have acquired the plasmid. antibiotic resistance O lactose intolerance color O apoptosis

Part A How is a gene for a particular protein inserted into a plasmid? Drag the terms on the left to the appropriate blanks on the right to complete the sentences. phosphate groups sticky ends an apurinic enzyme nitrogen-containing bases a recombinant DNA joined Submit cut ovide Feedback a donor DNA a restriction enzyme Request Answer When a gene has been obtained using Reset Help it is mixed with the plasmids that have been by the same enzyme. When mixed together in a fresh E. coli culture, the of the DNA fragments bond with the of the plasmid DNA to form

What does it mean for viral DNA to program cells? explain in your own words as simply as possible.

Which RNA polymerase makes TRNA? RNA pol I RNA pol II RNA pol III RNA pol IV