Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

Please answer the following questions. Would be apreciatted! Please do not do th

ID: 213162 • Letter: P

Question

Please answer the following questions. Would be apreciatted! Please do not do the short answer questions at the end.

ID: B Name: 38. When viruses are not inside a cell, they arc carried about passively by random molecular movements and perform none of the metabolic activities of a. homcostasis. b. life. c. eukaryotes. d. prokaryotes. e. autotrophs. 39. What is the relationship between operons and transcription units? a. They are two terms for the same thing. b. An operon is made up of a transcription unit and associated regulatory DNA sequences. c. A transcription unit is made up of an operon and associated rcgulatory DNA sequences. d. An operon is comprised of multiple transcription units. e. A transcription unit is comprised of multiple operons Short Answer 40. Explain the difference between benign and malignant tumors 41. Conjugation, trans duction, and transformation are the three main mechanisms for gene transfer between bacteria. Compare these three mechanisms in terms of how DNA is transferred. 42. What is the major difference between a genomic library and a cDNA library?

Explanation / Answer

38. Option B is correct.
Viruses are obligate parasites. They do not show any signs of life when present out side their host.

39. Option B is correct.
An operon contains a transcription unit and its regulatory elements.

32. Option A is correct.
Lactose binds to the repressor and removes it from the operator so that operon can be transcribed by the RNA polymerase.

33. Option A is correct.
Both eukaryotes and prokaryotes exert bulk of the gene regulation at the transcriptional level.