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1. Reporter genes are often used to study how the transcription of a particular gene is controlled during fruit fly development. You are interested in a gene called brainless that you think is involved in neural cell development.a. Draw or describe how the reporter gene construct would be constructedb. Give […]

gene A controls the sharpness of spines in a type of cactus. cactuses with the dominant allele, A, have sharp spines, whereas homozygous recessive aa cactuses have dull spines. at the same time, a second gene, N, determines whether cactuses have spines at all. Homozygous recessive nn cactuses have no […]

1. Describe the functional requirements of an antiporter transport protein (i.e., what properties must the protein have to operate effectively?). Do antiporters represent an example of passive or active transport? Why? 2. With reference to aquaporins or the bacterial K+ channel, describe how ion channels can ensure ion specificity while […]

Two Questions: What, if anything, is wrong with the following statement: “When NaCl is dissolved in water, the water molecules closest to the ions will tend to orient themselves so that their oxygen atoms point toward the sodium ions and away from the chloride ions.”  The drug thalidomide was once prescribed […]