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22. give the mrna complementary strand for: cgcgtta

23. if the amount of a is 30% in a strand of dna, what will be the % of g?

25. analyze the results of a cross between two organisms that are both heterozygous for two different genes (aabb). use a punnett square to evaluate the possible genotypes. (1) list all the genotypes from your punnett square in the answer space. (2) determine how many phenotypes can be produced in the offspring. (3) determine the probability of producing offspring with the aabb genotype.

27. describe 2 possible effects of a mutation on an organism. describe an example for each effect you mention.

28. suppose you are a scientist trying to people who cannot produce an enzyme needed for proper digestion. how could you use genetic engineering techniques to make transformed bacteria that produce the enzyme?

29. compare and contrast th