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Question 128 MCQ · 7.0 marks
**[7 marks]**
21. Write a code to connect with Twitter’s streaming API. The stream should track tweets which
mention the word “Global Warming”. On every hit dump the tweet object as a Json file and
disconnect the stream when 1,000 tweets are collected.
6406531887728.
I have written answers on the answer sheets
6406531887729.
Not applicable
**Algo Thinking**
**Section Id :** 64065338354
**Section Number :** 7
**Section type :** Online
**Mandatory or Optional :** Mandatory
**Number of Questions :** 16
**Number of Questions to be attempted :** 16
**Section Marks :** 50
**Display Number Panel :** Yes
**Group All Questions :** No
**Enable Mark as Answered Mark for Review and**
Yes
**Clear Response :**
**Maximum Instruction Time :** 0
A published solution is not available for this question yet.
Many antibiotics interfere with the transfer of genetic information from X to Y, preventing bacteria
from growing. Y is a polymer of Z. X has ribose sugar in its composition. Identify X, Y, and Z. Name
the process that is affected by antibiotics here. X, Y, Z and the process are respectively:
6406531887768.
RNA, Protein, Amino acids, Translation
6406531887769.
DNA, Protein, Amino acids, Transcription
6406531887770.
RNA, Protein, Amino acids, Transcription
6406531887771.
RNA, Amino acids, Proteins, Translation
A published solution is not available for this question yet.
Which of the following statements is/are true?
1. UPGMA method builds a rooted phylogenetic tree while the neighbor-joining tree method
builds an unrooted phylogenetic tree.
2. UPGMA algorithm requires the distances to be ultrametric while the neighbor-joining tree
algorithm requires the distances to be additive, if we need to prove that the respective algorithm
can correctly recover the true tree.
3. The basic assumption of the UPGMA method is that all taxa evolve at a constant rate and that
they are equally distant from the root.
6406531887776.
1 and 2
6406531887777.
2 and 3
6406531887778.
1 and 3
6406531887779.
1, 2 and 3
A published solution is not available for this question yet.
Which of the following is/are true with respect to additive and ultrametric distance matrices and
trees? Assume that the distance matrix satisfies the usual distance metric axioms like non-
negativity, symmetricity and triangle inequality. Also, recall that an ultrametric distance matrix is
any distance matrix that can be derived from some ultrametric tree (using the edge weights and
paths in that tree).
6406531887780.
A 3 × 3 non-additive distance matrix is possible.
6406531887781.
A 4 × 4 non-additive distance matrix is possible.
6406531887782.
All ultrametric distance matrices are additive but not vice-versa.
6406531887783.
In an ultrametric tree, the distance from the root to any leaf is the same.
**BBN**
**Section Id :** 64065338355
**Section Number :** 8
**Section type :** Online
**Mandatory or Optional :** Mandatory
**Number of Questions :** 1
**Number of Questions to be attempted :** 1
**Section Marks :** 100
**Display Number Panel :** Yes
**Group All Questions :** No
**Enable Mark as Answered Mark for Review and**
Yes
**Clear Response :**
**Maximum Instruction Time :** 0
A published solution is not available for this question yet.
