Biotechnology
2017 · Paper 1
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Complete GATE BT 2017 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 22–24 of 65. Imported answers require review unless explicitly marked reviewed.
Question 22
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A 5 liter chemostat is fed fresh medium at 0.2 liters/minute having a substrate concentration of 25 grams/liter. At steady state, the outgoing stream has substrate concentration of 2.5 grams/liter. The rate of consumption (grams/liter/minute) of the substrate in the reactor is _____.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 23
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The transcription factor X binds a 10 base pair DNA stretch. In the DNA of an organism, X was found to bind at 20 distinct sites. An analysis of these 20 binding sites showed the following distribution:
Base | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|
A | 11 | 0 | 0 | 0 | 16 | 2 | 4 | 0 | 4 | 3 |
T | 3 | 0 | 19 | 0 | 1 | 3 | 4 | 20 | 2 | 4 |
G | 4 | 20 | 0 | 0 | 2 | 4 | 6 | 0 | 12 | 2 |
C | 2 | 0 | 1 | 20 | 1 | 11 | 6 | 0 | 2 | 11 |
What is the consensus sequence for the binding site of X?
Your answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 24
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A bacterium has a genome of size 6 million base pairs. If the average rate of DNA synthesis is 1000 base pairs/second, the time taken (in minutes) for replication of the genome will be _____.
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