Read the following statements about the vascular bundles:
(a) In roots, xylem and phloem in a vascular bundle are arranged in an alternate manner along the different radii
(b) Conjoint closed vascular bundles do not possess cambium
(c) In open vascular bundles, cambium is present in between xylem and phloem
(d) The vascular bundles of dicotyledonous stem possess endarch protoxylem
(e) In monocotyledonous root, usually there are more than six xylem bundles present

Choose the correct answer from the options given below:
1. (a), (c), (d) and (e) only 2. (a), (b) and (d) only
3. (b), (c), (d) and (e) only 4. (a), (b), (c) and (d) only
Subtopic:  Vascular Tissue System |
Level 3: 35%-60%
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What is the role of large bundle sheath cells found around the vascular bundles in C4 plants ?

1. To protect the vascular tissue from high light intensity
2. To provide the site for photorespiratory pathway
3. To increase the number of chloroplast for the operation of Calvin cycle
4. To enable the plant to tolerate high temperature
Level 3: 35%-60%
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Given below are two statements : 
Statement I: The release of sperms into the seminiferous tubules is called spermiation.
Statement II: Spermiogenesis is the process of formation of sperms from spermatogonia.
In the light of the above statements, Choose the most appropriate answer from the option given below :
1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect 
4. Statement I is Correct but Statement II is incorrect
Subtopic:  Spermiogenesis/Sperm Structure/Hormonal Regulation |
Level 3: 35%-60%
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In an E.coli strain i gene gets mutated and its product cannot bind the inducer molecule. If growth medium is provided with lactose, what will be the outcome ?
1. RNA polymerase will bind the promoter region 
2. Only z gene will get transcribed 
3. z, y, a genes will be transcribed 
4. z, y, a genes will not be translated 
Subtopic:  Gene Regulation: Lac Operon |
Level 3: 35%-60%
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Statements related to human Insulin are given below.
Which statement(s) is/are correct about genetically engineered Insulin?
(a) Pro-hormone insulin contain extra stretch of C-peptide
(b) A-peptide and B-peptide chains of insulin were produced separately in E.coli, extracted and combined by creating disulphide bond between them.
(c) Insulin used for treating Diabetes was extracted from Cattles and Pigs.
(d) Pro-hormone Insulin needs to be processed for converting into a mature and functional hormone.
(e) Some patients develop allergic reactions to the foreign insulin.

Choose the most appropriate answer from the options given below:
1. (c), (d) and (e) only 2. (a), (b) and (d) only
3. (b) only 4. (c) and (d) only
Subtopic:  Med Applications & Humulin |
Level 3: 35%-60%
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Given below are two statements:
Statement I:  In a scrubber the exhaust from the thermal plant is passed through the electric wires to charge the dust particles.
Statement II:  Particulate matter (PM 2.5) cannot be removed completely by scrubber but can be removed by an electrostatic precipitator.

In the light of the above statements, choose the most appropriate answer from the options given below:
1. Statement I is incorrect but Statement II is correct
2. Both Statement I and Statement II are correct
3. Both Statement I and Statement II are incorrect
4. Statement I is correct but Statement II is incorrect
Level 4: Below 35%
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