Question

Which of the following is not Replicating shapes Mad cow disease DNA Toxic proteins inted with prio Bovine spongiform encephalopathy Which statement is true about viroide? They are single-stranded RNA particles They reproduce only outside of the cell c. They produce proteins They affect both plants and animals e. None of the above is true about viroids A bacterium is infected with an exp b. infected with an experimentally constructed bacteriophage composed of the e protein coat and T4 phace DNA The new phages produced would have T2 protein and T4 DNA T2 protein and T2 DNA a mixture of the DNA and proteins of both phages T4 protein and T4 DNA T4 protein and T2 DNA d. e. 39. c. To cause a human pandemir the COVID-19 Corona virus would have to spread to primates such as chimpanzees. develop into a virus with a different host range. become capable of world wide human to human transmission arise independently in chickens in North and South America become much more pathogenic. d. of the following, which is the least related to the others? viral envelope b. viroids c. provirus d. prophage e. prions 41. The host range of a virus is determined by a. the enzymes carried by the virus. b. whether its nucleic acid is DNA or RNA. c. the proteins in the host's cytoplasm. d. the enzymes produced by the virus before it infects the cell. e. the proteins on the surface of the virus and the surface of the host. Which of the following is characteristic of the lytic cycle? a. Many bacterial cells containing viral DNA are produced. b. Viral DNA is incorporated into the host genome. c. The viral genome replicates without destroying the host. d. A large number of phages are released at a time. e. The virus-host relationship usually lasts for generations.

Answer 1

36) Bovine spongiform encephalopathy is commonly known as mad cow disease it is caused by prions, prions are misfolded protein aggregate so the answer is c) DNA

37) viroids are single-stranded RNA molecules, which mainly infect plants, and they can replicate only in the cell so the answer is a) They single-stranded RNA particles

38) bacteriophage injects the DNA into the bacteria and the genetic material replicates inside the cell and phage particles are produced from the mRNAs transcribed from the DNA, so the new phage particles will have the protein and DNA of the T4 phage since the genetic material of the infected phage is DNA c) T4 protein and T4 DNA.