You have discovered a gene (Figure 7-3A) that is alternatively spliced to produce several forms of mRNA in various cell types, three of which are shown in Figure 7-3B. The lines connecting the exons that are included in the mRNA indicate the splicing. From your experiments, you know that protein translation begins in exon 1. For all forms of the mRNA, the encoded protein sequence is the same in the regions of the mRNA that correspond to exons 1 and 10. Exons 2 and 3 are alternative exons used in different mRNA, as are exons 7 and 8. Which of the following statements about exons 2 and 3 is the most accurate?   Figure 7-3  

Bonus Question worth 4-points: During class, we discussed beginning inventory and purchases. We discussed that at the end of the period, cost of goods available for sale would be included in one of two places (accounts) in the financial statements. What were the two places/accounts that we discussed.

Which of the following should be avoided by patients taking monoamine oxidase inhibitors (MAOI)?

  The process of sorting human chromosome pairs by size and morphology is called karyotyping. A modern method employed for karyotyping is called chromosome painting. How are individual chromosomes “painted”?  

  Sickle-cell anemia is an example of an inherited disease. Individuals with this disorder have misshapen (sickle-shaped) red blood cells caused by a change in the sequence of the β-globin gene. What is the nature of the change?  

(select all that apply) Which of the following are considered combination reactions?

Why is a washing step necessary during an ELISA assay?

  Give a reason why DNA makes a better material than RNA for the storage of genetic information, and explain your answer.  

A jar contains 4 red marbles numbered 1 to 4 and 8 blue marbles numbered 1 to 8. A marble is drawn at random from the jar. Find the probability of choosing a red 8.

Citric acid reacts with \(\ce{NaOH}\) via the following chemical equation. $$\ce{3NaOH(aq) + H_{3}C_{6}H_{5}O_{7}(aq) -> Na_{3}C_{6}H_{5}O_{7} (aq) + 3H_{2}O}$$ A \(60.00~\text{mL}\) sample of citric acid is titrated with \(0.0361~M~\ce{NaOH}\text{.}\) At the endpoint, it is found that \(38.23~\text{mL}\) of titrant was used. What was the concentration of the citric acid?