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pus.w ps/assessment/take/launch.jsp?course_assessmentjd«J65241?&course-id-JOI; Question Completo 4 proteins total (2 unique protains)+150 bp. QUESTION 4 Dystrophin is transcribed in the nucleus and translated in the cytoplasm. Thus, the dystrophin mRNA must leave the nucleus. Nuclear import and export depend on the G-protein, Ran. Which of the following is true of G-proteins? (Only one correct answer) O They are activated by GAPs and deactivated by GEFs. O They actively synthesize GTP from GDP + a phosphate OThey are active when bound to GTP O They are active when bound to GDP. QUESTION5 Replication has four essential features. Which of the following experiments demonstrates the semi- discontinuous nature of replication? O Hershey and Chase demonstrate that DNA can be passed from one organism to another 0 Meselson and Stahl demonstrate that when cells are grown in N15 and then switched to N14, a hybrid (N15/N14) strand is observed Okazaki and Okazaki demonstrate that short pieces of replicated DNA can be joined together using a ligase. Watson and Crick araue that DNA is a double helix with phosohodiester bonds on the outside and Cliek Save and Submit to save and submit. Click Save All Answers to save all answers MacBook AirExplanation / Answer
Q. 4
They are active when bound to GTP.
The G proteins are activated by GEF which exchanges GDP for GTP and are deactivated by GAP which helps in the hydrolysis of the bound GTP.
Q. 5
Messelson and Stahl demonstrate that when cells are growth in N15 and then switched N14, a hybrid (N15/N14) is observed.
The new DNA strands consist of one parental N15 strand and one daughter N14 strand. This is called as semi-conservative replication.
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