Complete GATE XL 2022 Paper 1 overview, original pages and practice · Timed previous-paper practice

Questions 82–84 of 122. Imported answers require review unless explicitly marked reviewed.

Paper practice 122 questionsPage 28 of 41

Question 82

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XL-SNAT2 marksNeeds review
If the plasmid given below is digested with restriction enzymes HindIII and EcoRI, considering complete digestion, how many DNA fragments will be released?
Diagram for Life Sciences question 82


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Question 83

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XL-SNAT2 marksNeeds review
Escherichia coli growing under favorable conditions doubles in every 20 minutes. If the initial number of Escherichia coli cells is 100, what will be the logarithmic number of cells at 17th generation? (Answer up to 1 decimal place)

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Question 84

Open question
XL-SNAT2 marksNeeds review
What will be value of the Numerical Aperture (NA), if aperture angle is 58° and oil immersed objective is used for the process of light microscopy? (Answer up to 1 decimal place)
Consider sin 58° = 0.85 and refractive index of immersion oil used = 1.50.

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