82) What is the function of reverse transcriptase in retrovinuses? A) It hydroly

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82) What is the function of reverse transcriptase in retrovinuses? A) It hydrolyzes the host cell's DNA B) It uses viral RNA as a template for making complementary RNA strands C) It uses viral RNA as a template for DNA synthesis D) It converts host cell RNA into viral DNA. 63) Which of the following processes can be effective in preventing the onset of v iral infection in 83) humans A) applying antiseptics C) getting vaccinated B) taking vitamins D) taking antibiotics 84) 84) A human pandemic is A) a viral disease that infects all humans. B) a virus that increases in mortality rate as it spreads C) a flu that kills more than 1 million people D) an epidemic that extends around the world. 85) Adenoviruses can cause many mild clinical conditions in humans. All are examples of symptomes 85) except B) bronchitis C) Sore muscles D) Common cold A) Pink eye 86)- 86) What is bioinformatics? A) a procedure that uses software to order DNA sequences in a variety of comparable ways B) the application of computational methods to the storage and analysis of biological data C) software programs available from NIH to design and synthesize genes D) a technique using three-dimensional images of genes to predict how and when they will be expressed 87) 87) What characteristic of short tandem repeat DNA makes it useful for DNA fingerprinting? animal to animal (which can A) The number of repeats varies widely from person to person or make it an effective method for paternity testing) B) Every racial and ethnic group has inherited different short tandem repeats C) The sequence variation is acted upon differently by natural selection in different environments 88) 88) Scientists were able to map the molecular makeup of every gene present in the human species as a part of what project? A) Bioinformatics sequencing C) Human Genome Projedt B) Whole-Genome project D) Genomics project 89) 89) Natural selection is based on all of the following except A) genetic variation exists within populations B) individuals who survive longer tend to leave more offspring than those who die young C) individuals adapt to their environments and thereby evolve. 90)- B) patterns of evolution. D) slower than natural selection 90) Artificial selection is A) past extinction C) human-directed selective breeding 10

Explanation / Answer

Answer for question number 82 : The correct option is C (It uses viral RNA as template to synthesize DNA.

Explanation : Reverse transcriptase is an enzyme found in the viruses that contain RNA as their genetic material. This enzyme performs three functions such as,

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