Restriction endonucleases in bacteria may have evolved in order to _____ a prote

Question

Restriction endonucleases in bacteria may have evolved in order to _____ a protect the bacteria from infection by viruses. b. carry out natural genetic engineering c. use nucleic acids as a food (energy) source. d. All of the choices are correct. During the investigation of a convenience store robbery, witnesses report that the perpetrator exited through a main entry door without wearing gloves. The police are holding a prime suspect in custody while sample from the door are collected and analyzed for a DNA match. Since the door was handled by many people before the robbery, how will the department distinguish the suspect's DNA from the DNA of others using PCR? a. Sequence-specific primers to the suspect's DNA will be added following PCR amplification. b. PCR will be used to make sequence-specific primers that are complementary to the suspect's DNA c. Since multiple people touched the doorknob without gloves, it is impossible to use PCR to distinguish the suspect's DNA. d. Sequence-specific primers to the suspect's DNA will be used for PCR amplification. Which of the following is found in common with protozoan's, bacteria, and archaeons? a. Mitochondria b. Binary fission c. Nucleus d Cell Wall Which of the following is found in common with protozoans, bacteria, and archaeons? a. Mitochondria b. Binary fission c. Nucleus d. Cell Wall Some anaerobic protists obtain energy using _____ a. cytochromes. b. mitochondria. c. hydrogenosomes. d. All of the choices are correct. What are the results of the release of cAMP from Dictyostelium discoideum? a. Cells aggregate, forming a large motile multicellular slug as a precursor to the development of a fruiting body. b. The cells develop flagella. c. The larger cells cannibalize the smaller, less developed cells. d. The cells form cysts until the growing conditions improve. Which of the following organisms groups can cause "red tide?" a. Apicomplexa b. Dinoflagellata c. Ciliophora d. Excavada Which best explains why diatoms are ecologically important? a. Diatoms are excellent sources of silica for commercial uses.

Explanation / Answer

56.option D. All of the above

57.option B.

58. Option B. Binary fission

59. Option D. All of the choices are correct

61. Option D. Dinoflagellates

Dinoflagellates are single celled flagellated Eukaryotes which emit red light by bioluminiscence.

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