TLS Online TPP Program

#Question id: 33514


The rate at which mammalian mitochondrial DNA accumulates mutations is 4% per million years and if mitochondrial genome is 16000 bp long then how many base pairs will be changed after 2 million years.

#Unit 2. Cellular Organization
  1. 600 bp
  2. 128 bp
  3. 1000 bp
  4. 456 bp
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TLS Online TPP Program

#Question id: 2977

#Unit 2. Cellular Organization

The mitotic exit network that localizes to spindle pole bodies and whose activity is regulated by spindle position belongs to the family of signaling pathways known as the Hippo pathway in metazoans. Following statements are-

A. The conserved core of the Hippo signaling pathways consists of the Hippo protein kinase, which activates the Lats-Mob1 kinase.

B. The kinases are organized by a scaffolding molecule that, at least in budding and fission yeasts, targets the kinase cascade to centrosomes.

C. As in many kinase signaling cascades, a GTPase controls the activity of the mitotic exit network and the septation initiation network.

D. In metazoans, activation of the Hippo pathway leads to tissue overgrowth because the transcriptional activator TAZ (known as YAP in the mouse) constitutively promotes the expression of growth- and proliferation-promoting genes.

Which of the following statements are incorrect?

TLS Online TPP Program

#Question id: 2060

#Unit 2. Cellular Organization

An animal cell lacking carbohydrates on the external surface of its plasma membrane would likely be impaired in which function?

TLS Online TPP Program

#Question id: 953

#Unit 1. Molecules and their Interaction Relevant to Biology

 The degradation of arginine, histidine and proline all lead to the product ________.

TLS Online TPP Program

#Question id: 27479

#Unit 1. Molecules and their Interaction Relevant to Biology

For monosaccharides having  two or more asymmetric carbons, their L or D con configuration can be decided by using

TLS Online TPP Program

#Question id: 129

#Unit 1. Molecules and their Interaction Relevant to Biology

Glycine is not a stereoisomer because