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GATE BT-2017 Answer Key | Solutions Discussion
#1
GATE BT 2017 Solutions,  Answers, Discussion and Answer keys  shared here....

#GATE Biotechnology 2017
#GATE Biotechnology Solutions
#GATE Biotechnology Answer key
#GATE BT
#GATE Biotech
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#2
Hello friends, if anyone finds answer key to GATE-2017 BT (held today) please post link here, and lets do some discussion on the exam
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#3
(02-05-2017, 09:05 PM)RONIT SHARMA Wrote: Hello friends, if anyone finds answer key to GATE-2017 BT (held today) please post link here, and lets do some discussion on the exam

Can you post the questions here? Discussion over each question would be quite productive.
Sunil Nagpal
MS(Research) Scholar, IIT Delhi (Alumnus)
Advisor for the Biotech Students portal (BiotechStudents.com)
Computational Researcher in BioSciences at a leading MNC


Suggested Reads:
Top Biotech Companies | Top places to work
Indian Biotech Companies and Job Openings
Aiming a PhD in Top Grad School? | These are the Important Points to Consider
Careers in Biotechnology | A list of various Options
Biotechnology Competitive Exams in India
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#4
Assertion: Gram -ve bacteria stained by saffranin
Reason: Gram -ve bacteria has LPS.
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#5
I guess answer is "B" both are correct but its not proper reason.
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#6
Q. Find the angle between two vectors: i-j+2k and 2i-j-k
Ans: 80.4
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#7
Q: Which amino acid has three ionizable sites?
A. Glycine
B. Leucine
C. Valine
D. Lysine

Ans: Lysine (I guess)
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#8
(02-05-2017, 09:45 PM)RONIT SHARMA Wrote: A: Gram -ve bacteria stained by saffranin
R: Gram -ve bacteria has LPS.

I am assuming that the question was regarding 'which of the two is more correct?'. On that ground, It should be B (Gram -ve bacteria have LPS) as it is due this factor that Saffranin can actually stain Gram -ve bacteria (Saffranin being a basic dye attaches well to the highly negative LPS).

How LPS is negatively charged? BCoz it is phosphorylated and it's the P group that confers the negative charge to LPS.

Edit:
Since it was Assertion and Reasoning, in my opinion, reason is correct.
Sunil Nagpal
MS(Research) Scholar, IIT Delhi (Alumnus)
Advisor for the Biotech Students portal (BiotechStudents.com)
Computational Researcher in BioSciences at a leading MNC


Suggested Reads:
Top Biotech Companies | Top places to work
Indian Biotech Companies and Job Openings
Aiming a PhD in Top Grad School? | These are the Important Points to Consider
Careers in Biotechnology | A list of various Options
Biotechnology Competitive Exams in India
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#9
Question was assertion and reasoning
Assertions: Gram -ve bacteria stained by saffranin
Reason: Gram -ve bacteria has LPS.
[+] 1 user Likes RONIT SHARMA's post
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#10
(02-05-2017, 09:55 PM)RONIT SHARMA Wrote: Q: Which amino acid has three ionizable sites?
A. Glycine
B. Leucine
C. Valine
D. Lysine

Ans: Lysine (I guess)


Following is a list of pKa values for the a-carboxylic acid group, the a-amino group, and any ionizable side chains (the ionizable groups in the same order).


Alanine
2.35
9.87

Arginine
2.01
9.04
12.48


Asparagine
2.02
8.80

Aspartic Acid
2.10
9.82
3.86


Cysteine
2.05
10.25
8.00


Glutamic Acid
2.10
9.47
4.07


Glutamine
2.17
9.13

Glycine
2.35
9.78

Histidine
1.77
9.18
6.10


Isoleucine
2.32
9.76

Leucine
2.33
9.74

Lysine

2.18
8.95
10.53


Methionine
2.28
9.21

Phenylalanine
2.58
9.24

Proline
2.00
10.60

Serine
2.21
9.15

Threonine
2.09
9.10

Tryptophan
2.38
9.39

Tyrosine
2.20
9.11
10.07


Valine
2.29
9.72

Lysine is the correct one.
Sunil Nagpal
MS(Research) Scholar, IIT Delhi (Alumnus)
Advisor for the Biotech Students portal (BiotechStudents.com)
Computational Researcher in BioSciences at a leading MNC


Suggested Reads:
Top Biotech Companies | Top places to work
Indian Biotech Companies and Job Openings
Aiming a PhD in Top Grad School? | These are the Important Points to Consider
Careers in Biotechnology | A list of various Options
Biotechnology Competitive Exams in India
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