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Question: The habitat of one species of tropical fish is red coral reefs. The large majority of the fish in this population are red. A few individual fish carry a mutation that prevents the production of the red pigment; as a result these individual fish are white. The temperature of the ocean where these fish live gets warmer and warmer over a 10 year period, and as a result the coral is bleached and turns white. Use what you have learned about natural selection to explain how this bleaching event may have affected the evolution this fish population (not including possible direct effects of warmer temperatures on the fish). Include the following terms in your explanation: differential reproduction, beneficial trait, allele frequency, selection pressure, evolution.
The antibiotic anisomycin is expected to not inhibit the growth of bacteria and to inhibit the growth of Halobium. Anisomycin is resistant to bacteria,
What will be the sex ratio in the offspring of a cross between a male that is heterozygous for lethal allele and a normal female.The classes of RNA molecules is linked with proteins.
Write down an equation that describes the synthesis of DNA. dNTPs is an abbreviation for the four deoxyribonucleoside triphosphates that can be added to the template strand.
suppose a bird that eats grasshoppers moves into the prairie. How will this affect natural selection of the grasshoppers? How might this change in a drought year.
There is a hybridization event between two different species with the same chromosome number. The hybrids are sterile. Explain your answer.
The patient lives near the San Luis Rey River and has no history of foreign travel, blood transfusion, or intravenous drug use. What is the disease? How was it obtained.
define how the rate of many enzyme catalyzed reactions varies with pH. What types of amino acids must be at the active site of an enzyme if its rate decreases at high pH.
Explain a specific example of a cross in two parents, each homozygous for different traits, which would result in a phenotype that is distinct from either parental phenotype.
What is the phenotypic ratio you would expect to see in the F2 generation if you were following a sex-linked trait? An autosomal trait? Two autosomal dominant characters (dihybrid cross).
Determine the ultimate effect in an XY human with its SRY gene mutated, many mating were made among all-white cats. The progent from these mating showed the following phenotypic frequency,
You have been injected into the femoral vein? What is the path from the right femoral vein to the lower lobe of the right lung? What is the path that I would take from the right femorla vein to the lower lobe of the right lung via right pulmonary art..
Dominant-recessive relationships can make determining genotype tricky, since an individual with the dominant phenotype may have either the homozygous dominant genotype or the heterozygous phenotype.
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