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#Question id: 3045


Which one of the following combinations Mac-Conkey Agar allows to growth of gram negative bacteria?

(P) Bile salts                          (Q) Sodium chloride

(R) Methylene blue                  (S) Crystal violet

#Unit 2. Cellular Organization
  1. P & S       

  2. P & R

  3. Q & S               

  4. P & Q

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TLS Online TPP Program

#Question id: 4757

#Unit 8. Inheritance Biology

The newborn baby of a mother having blood group O, Rh+ and father having blood group AB, Rh-, got mixed with other babies in the hospital. The baby with which of the following blood groups is not confirmable to be of the said couple?

(i) AB, Rh+                                                    (ii) O, Rh+

(iii) A, Rh+                                         (iv)  B, Rh+

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#Question id: 5522

#Unit 5. Developmental Biology

In reptiles, birds, and mammals, mesoderm is made by invagination and involution into the

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#Question id: 31385

#Unit 4. Cell Communication and Cell Signaling

If cytochrome c is microinjected into the cytosol of wild-type mammalian cells and cells that are doubly defective for Bax and Bak, which cells would undergo apoptosis?

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#Question id: 4541

#Unit 3. Fundamental Processes

Mig1 recruits a “repressing complex” containing the Tup1 protein. This complex is recruited by many yeast DNA-binding proteins that repress transcription, including the alpha2 protein involved in controlling the mating-type specific. Tup1 also has counterparts in mammalian cells, choose correct mechanisms have been proposed to explain the repressing effect of Tup1.

I-Tup1 acts on nucleosomes either through recruiting histone deacetylases and/or by positioning a nucleosome at or near the transcription start site.

II-Tup1 interacts directly with the transcriptional machinery at the promoter and inhibits initiation.

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#Question id: 12109

#Unit 10. Ecological Principles

Niches of two coexisting species of pond snail of the same genus are likely to be similar, but not identical, because of which of the following?
I. Closely related species use similar resources.
II. Competitive interactions exist between these species. 
III.  Unlimited resources are available.