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What would be the outcome if the PCT is removed from the nephron?
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The pocket into which a substrate binds to an enzyme is called as ____________.
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Study the following statements and select correct option.
Statement I: Removal of co-factors from the enzyme disrupts the catalytic activity of the enzyme.
Statement II: Prosthetic groups bound tightly to apoenzymes in order to make them catalytically active.
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For which of the following reason RNA primer is must for initiation of DNA replication?
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Prosthetic groups differ from co-enzymes in that-
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Which of the following is the correct definition of summation effect?
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Assertion (A): DNA replication is said to be semi-conservative.
Reason (R): After DNA replication, each daughter molecule has one old and one new strand.
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Currently, ______ mass extinction is considered to be the progressing at an alarming rate due to the loss of biodiversity.
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Glycosidic bonds would be broken under the activity of which enzyme?
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Which among the following is an exception to invasive species?
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Study the following statements with respect to enzymes and select the correct option.
- Most of the enzymes work at an optimum temperature between 20°C and 35°C.
- Enzymes are destroyed at lower temperature of 10-20°C.
- Each enzyme exhibits its highest activity at a specific pH i.e. optimum pH.
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'The Evil Quartet' is a concept which describes the ______.
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Match the Column I (Enzymes) with Column II (Functions) and select the correct option:
| Column I | Column II | ||
| i. | Restriction endonuclease | a. | Joins the DNA fragments |
| ii. | Restriction exonuclease | b. | Extends primers on genomic DNA template |
| iii. | DNA ligase | c. | Cuts DNA at Specific position |
| iv. | Taq polymerase | d. | Removes nucleotides from the ends of DNA |
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Identify the CORRECT combination of statements with respect to DNA synthesis.
I. Always the direction of DNA polymerization 5' → 3' when referring to the polarity of strand being synthesized.
II. DNA ligase forms hydrogen bonds between two newly synthesized DNA strands.
III. DNA polymerases on their own cannot initiate the process of replication.
IV. DNA polymerase can catalyse polymerization in both 5'→ 3' and 3'→ 5' direction.
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The proximal end of the renal tubule is a cup like structure called ______.
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Which of the following term correctly describes the movement of ribosome on the mRNA?
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Which of the following is present at the sticky ends of a fragmented DNA molecule?
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Which of the following is TRUE with respect to Respiratory Quotient?
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Select the INCORRECT statement.
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