Cell Biology Answers

How is the protein produced by the mutant mRNA strain below different from the wild type (normal) mRNA strand? You will need to use the table shown here to answer.

Wild Type  UA¦ACC¦AUG¦AAG¦ACU¦AUC¦AUU¦GCU¦UUG¦AGC¦UAC¦AUU¦C

Mutant    UA¦ACC¦AUG¦AAG¦ACC¦AUC¦AUU¦GCU¦UUG¦AGC¦UAC¦AUU¦C

Pepsin is an enzyme present in gastric juice . In the stomach, it catalyzes the breaking down of proteins into shorter polypeptides.Therefore, proteins are the_____ of pepsin.

The binding of ATP with the enzyme pyruvate kinase results in this enzyme's failure to catalyze the last step in the breaking down of glucose during the process of glycolysis in this situation ATP act as the _____ of pyruvate kinase

Many of the enzymes involved in photosynthesis aid in chemical reaction that remove electrons from the oxygen atoms in water and transfer these electrons to the carbon atoms in carbon dioxide. Based on the kind of reaction that they catalyze ,these enzymes are classified as

Based on where they perform their function the enzymes amylase and maltese in human saliva are classified as

What mutation in the DNA sequence for a protein would make the protein more

likely to dissolve in aqueous solutions?

Q1: Why a person with O blood group can donate blood to a patient with AB blood group but the opposite is impossible. Explain.

Q2:How does your body regulate the increase in the level of blood sugar after having a meal rich in carbohydrates. Focus on the relevant transporters. 

1. Evaluating the results for accuracy

In an experiment, the concentration of a protein in a solution was measured by a student to be 273µg/ml, but the true value of the concentration was 260µg/ml. What is the percent error in this measurement?

Relative error: (2 marks)

Comment on the accuracy: (2 marks)

2. Examine the following data set for the presence of outliers using the Q-test.(4 marks)

Replicate # Values

1 0.200

2 0.186

3 0.110

4 0.196

5 0.193

The importance of capping in translation is? a. Cap is identified by 30S subunit of the riboso b. Cap is identified by tRNA c. Cap is identified by 28S rRNA d. Cap is identified by 16S rRNA​

After separating DNA into monomeric units, which of the following should be broken to isolate nucleosides?

a. the ester bond between phosphate and sugar

b. the ester bond between base and sugar

c. the glycosidic bond between phosphate and sugar

d. the glycosidic bond between base and sugar