#Question id: 4101
#Unit 3. Fundamental Processes
In order to ensure that only fully processed mature mRNAs are allowed to be exported to cytosol, pre-mRNAs associated with snRNPs are retained in the nucleus. To demonstrate this, an experiment was performed where a gene coding a pre-mRNA with a single intron was mutated either at the 5’ or 3’ splice sites or both the splice sites.
Given below are a few possible outcomes, Choose NOT FEASIBLE OUTCOME
A. Pre-mRNA having mutation at both the splice sites will be retained in the nucleus because of the presence of bound snRNPs.
B. Pre-mRNA having mutation at both the splice sites will be exported to cytosol because of the absence of bound snRNPs.
C. Pre-mRNA mutated at either 3’ or 5’ splice sites will be retained in the nucleus because of the presence of bound snRNPs.
D. Pre-mRNA mutated at either 3’ or 5’ splice sites will be exported to cytosol because of the absence of bound snRNPs.
#Question id: 561
#Unit 1. Molecules and their Interaction Relevant to Biology
Enzyme X exhibits maximum activity at pH = 6.9. X shows a fairly sharp decrease in its activity when the pH goes much lower than 6.4. One likely interpretation of this pH activity is that:
#Question id: 27382
#Unit 1. Molecules and their Interaction Relevant to Biology
#Question id: 27511
#Unit 2. Cellular Organization
Which of the following is true when a Intercalation of ethidium ion into the DNA takes place
a. It unwind the two base pair by 260
b. Reduces the normal rotation per base pair from 360 to 100
c. Increases the normal rotation per base pair from 100 to 360
d. It first removes the negative supercoils and then introduces positive supercoils
#Question id: 11506
#Unit 9. Diversity of Life Forms
A biologist discovers a new unicellullar organism that possesses more than two flagella and two small, but equal-sized, nuclei. The organism has reduced
mitochondria (mitosomes), no chloroplasts, and is anaerobic. To which clade does this organism probably belong?