Ultimate Biology Study Guide - Questions & Answers

Which of the following PCR modifications was developed to allow for the amplification of an RNA template ? A ) Multiplex B ) Nested C ) Reverse transcriptase D ) Real - time
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Match the letter of the phase during which each event occurs. Some answers may be used more than once. The nuclear envelope begins to disintegrate. a. Cytokinesis Chromatids separate at the beginning of this phase. b. Prometaphase The chromosomes line-up at the center of the cell. c. Anaphase Chromosomes arrive at opposite poles and begin to d. Interphase decondense. e. Metaphase The cell grows rapidly. f. Telophase Separate chromosomes are not clearly visible but the g. Prophase chromatin has become thicker and shorter. A cell plate completely divides a plant cell. Kinetochores appear and mitotic spindle begins to attach to kinetochores. Each sister chromatid is attached to a spindle fiber from the opposite pole. Certain spindle fibers begin to elongate the cell.
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An ecosystem is unlikely to be limited by the supply of _____ because it is obtained from the air.
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In medium-sized stars such as the sun, nuclear fusion almost always means the fusing of nuclei to form , but larger stars can produce elements as heavy as _____.
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A group of organisms that can breed and produce fertile offspring is known as a?
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Why do so many eukaryotic pathogens cause highly refractory and long-term chronic infections that are difficult to treat in contrast with prokaryotic pathogens?
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2. Which characteristics of living things do viruses have? Which do they lack?3. Could viruses have been the first form of life on earth? Why or why not?4. List three ways the body can protect itself against viral or bacterial infections.5. Why do the symptoms of certain viral infections occur after having disappeared for a period of time?
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if cooking a beef roast with significant amounts of collagen, how can the meat be most effectively tenderized? a.mechanically tenderize meat or cut the collagen from the meat b.use a moist-heat cooking method to change the collagen to gelatin c.slice thinly across the grain of the meat d.roast to rare or medium rare
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the placement of the operator sequence between the promotor and the structural genes is critical to the proper function of the lac operon. view available hint(s)for part c the placement of the operator sequence between the promotor and the structural genes is critical to the proper function of the lac operon. true false
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explain the difference between arguing that humans (or other species) are fitness maximizers vs. adaptation executers.
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how to grow (almost) anything: a hybrid distance learning model for global laboratory-based synthetic biology education
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which evolutionary innovation was most significant in helping tetrapods move to dry terrestrial environments?
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a distinctive trait linking people from east asia and the americas is: a. shovel-shaped incisors. b. large nose. c. thick, long bones. d. extra muscles on the scapula.
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you are trying to identify an organism. this organism contains no muscle tissue. it is not diploblastic. it must be a
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where did human waste go before the creation of waste water legislation and waste water treatment plants in new york and elsewhere in the us?
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question which choice is a component of a nucleotide? responses phosphate group phosphate group carboxyl group carboxyl group amino group amino group r group r group
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state what would happen to the ion pumping activity and atp hydrolyzing activity of the na /k pump if the plasma membrane of animal cells was made entirely permeable to na . what would happen to the na distribution?
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what is the primary substance contained in the inorganic portion of bone tissue? magnesium magnesium calcium phosphate calcium phosphate collagen collagen iron
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what is the likely cause of the change in frequency of melanic moths in michigan (mustard-colored diamonds), in pennsylvania (blue squares), and at caldy common in england (red dots)?
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all of the following are consequences of population growth except: group of answer choices natural resources being depleted. higher carrying capacity of the earth. decreased availability of clean water. animal habitats being destroyed.
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modern humans have: a. large browridges, large nasal sinuses, and a large masticatory complex. b. a high vertical forehead, a round and tall skull, and small browridges. c. a small face, small teeth, and a projecting chin. d. both b. and c.
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Marijuana is an accepted medical treatment for the nausea and vomiting associated with chemotherapies.
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which list correctly identifies characteristics that protists share with animals?
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in yeast signal transduction, a yeast cell releases a mating factor, which ________.
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