Biology, 14.04.2020 18:22 ipadguy1806
Africa, Asia, South America, and Antarctica share some patterns of primitive (fossil) plants and early reptiles, but do not have similar mammal populations. These findingsQuestion 11 options:cast serious doubts upon the theory of continental drift and fused land masses. are an unsolved puzzle probably due to the random nature of biological evolution. suggest that a pattern of land bridges existed at different times in geological history. suggest that the earlier plants and reptiles evolved while continents were joined, but mammals radiated into diverse groups after separation. suggest that the mammals evolved earlier while continents were joined, but plants and reptiles radiated into diverse groups after separation. hidden in much of the human population. A survey of a class of 36 students finds that 27 (0.75) are right-handed and 9 (0.25) are left-handed. Using the Hardy-Weinberg formula, what would the expected genotypes and allele frequencies be in this theoretical population
Answers: 2
Biology, 21.06.2019 18:40
In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid
Answers: 2
Biology, 21.06.2019 23:30
Match the examples to the correct level of organization. 1. system level roses, snakes, puppies 2. organism level roots, stamens, leaves 3. tissue level bone, cartilage, blood 4. organ level heart, veins, arteries
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Biology, 22.06.2019 06:00
Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time
Answers: 1
Biology, 22.06.2019 20:50
Assume that you are interested in separating short (200-400 bp) dna molecules from a pool of longer molecules in the 10,000-20,000 nucleotide range. you have two recipes for making your polyacrylamide gels: one recipe uses 1.5 percent agarose and would be considered a “hard gel,” while the other uses 0.5 percent agarose and would be considered a loose gel. which gel should you use to separate the short (200-400 bp) dna molecules from a pool of longer molecules in the 10,000-20,000 nucleotide range?
Answers: 3
Africa, Asia, South America, and Antarctica share some patterns of primitive (fossil) plants and ear...
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