SA3b. (8 pts) Assembling Biomolecules RNA is composed of [nucleicacidmonomer] monomers connected by [nucleicacidbond] bonds. Proteins are composed of [proteinmonomer] monomers connected by [proteinbond] bonds. Polysaccharides are composed of [polysaccharidemonomer] monomers connected by [polysacaccharidebond] bonds. Triglyerides are composed of [triglyceridecomponents] connected via a [triglyceridereaction] reactions.
Read Details1B. Table (6 pts) Phenotype Genotype Observed Number Observed Frequency (%) Expected Frequency (%) Brown Body BB 3500 [Observed1] [Expected1] Brown Body Bb 4500 [Observed2] [Expected2] Black Body bb 2000 [Observed3] [Expected3] Total 10,000 100% 100% *Write your answers as a percent%
Read DetailsResearchers move a set of salamanders to a larger island with shrubs. They intentionally choose salamanders with three body sizes to move: small, medium, and large. They wanted to understand the strength of natural selection acting on body size. Use the table below to calculate the selection coefficient for the large phenotype. Phenotype: Large Medium Small Chance of survival to mating: 25% 50% 10% Number of offspring if survive: 10 20 10 Fitness (average for an individual with that phenotype): 0.25 x 10 = 2.5 0.5 x 20 =10 0.1 x 10 = 1 Relative fitness: ? ? ? Selection coefficient: ? ? ?
Read DetailsThe next three questions reference the following scenario. The scenario will be repeated for your reference and the unique question will be at the bottom of the scenario. Researchers placed a population of 160 tree-climbing salamanders on an island that had no trees. They measured the length of the individuals in the initial population (top graph). Twenty years later, the researchers returned to the island. They measured the length of the salamanders they found on the island (bottom graph). They saw the pattern in body size below: Question: Can researchers be sure the population evolved?
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