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What accounts for the difference in how the leading and lagging strands of DNA are synthesized? a. DNA polymerase can work on only one strand at a time. b. The origins of replication occur only at the 5' end. c. DNA polymerase can join new nucleotides only to the 3' end of a growing strand. d. DNA ligase works only in the 3' 5' direction.
A DNA polymerase made an error during the replication of an important gene region of DNA. None of the DNA repair enzymes detected or repaired the damage.
In order to study transcriptional regulation and attenuation in the tryptophan operon, the UGG codons for tryptophan in the trp leader mRNA sequence were mutated into UUG codons. Using this altered trp operon, please answer the following questions..
What is the disorder beriberi and how is this relevant to pyruvate dehydrogenase mechanism? and why does its exposure to arsenite or mercury lead to symptons similar to beriberi.
Explain how adjusting the pH of your reaction flask can be used to artificially bypass the effects of the inhibitors used in your experiments.
Diagram the cycle of carbon during photosynthesis, carbohydrate production and breakdown, fermentation and combustion.
Use chi-square test, test whether these two loci show independent assortment? How would you explain the frequency of the progeny genotypes?
Explain the study of hypothesis? Specify the outcome variables and also state how they were measured? Explain the study factors (exposures) and how were they measured?
Assume you are performing a reverse transcription reactions for high-throughput analysis using a 96-well plate format. Each 96-well plate is eight horizontal rows of wells by 12 vertical columns of wells.
What happens to the stability of an alpha helix stretch of a protein when it is taken from water and placed in hydrocarbon?
How does aggregation occur in sickle-cell anemia? Place the steps in the correct order. Note that deoxyhemoglobin is generally in the T state; oxyhemoglobin is in the R state.
Would the blood pressure in the pulmonary capillaries at the bottom of a lung be the same as the blood pressure in the capillaries at the top of a lung in the standing individual? Which area would have the lower blood pressure?
In a lab, you are supposed to observe and record the 4 different kinds of corn kernel phenotypes. The phenotypes are purple smooth, purple wrinkle, yellow smooth, and yellow wrinkled.
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