Following statements are regarding to control of the G1–S phase transition in budding yeast.

A. G1 cyclin-CDK complexes stimulate the formation of G1/S phase cyclin-CDKs, which then initiate bud formation, centrosome duplication, and DNA replication. In yeast, the G1 cyclin gene is called CLN3.

B. Once sufficient Cln3 is synthesized from its mRNA, Cln3-CDK complexes phosphorylate and activate the transcriptional repressor Whi5.

C. Phosphorylation of Whi5 promotes its export out of the nucleus, allowing the transcription factor complex SBF to induce transcription of the G1/S phase cyclin genes CLN1 and CLN2 as well as other genes important for DNA replication.

D. Once produced, Cln1/2-CDKs contribute to further Whi5 phosphorylation. This positive feedback loop ensures the rapid accumulation of G1/S phase cyclin-CDKs.

Which of the following statements are correct?

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#Question id: 11458

#Unit 7. System Physiology – Animal

A person able to hear only low-frequency sounds would probably have which of the following structural problems in the ear?

TLS Online TPP Program

#Question id: 11459

#Unit 7. System Physiology – Animal

Partial or complete loss of hearing (deafness) can be caused by damage to the ________.

I) axons of the neurons associated with each hair cell that carry information to the brain

II) hair cells (the sensory receptors) in the cochlea

III) tympanic membrane, or eardrum

TLS Online TPP Program

#Question id: 11460

#Unit 7. System Physiology – Animal

The round window ________.

I) dampens fluid vibrations

II) collects sound pressure waves

III) detects the frequency of sounds

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#Question id: 11461

#Unit 7. System Physiology – Animal

Elephants hear sounds that are too low for humans to hear. This sensitivity is primarily due to the differences in the ________.

TLS Online TPP Program

#Question id: 11462

#Unit 1. Molecules and their Interaction Relevant to Biology

1. C-terminal of all 20 amino acid is same.

2. N-terminal of all 20 acid is same.

3. N-terminal of all amino acid is same except one .

4. All acidic amino acid have corboxy terminus in their side chain.

5. All basic amino acid have H3N+ group in their side chain.

Find the correct statements

TLS Online TPP Program

#Question id: 11463

#Unit 1. Molecules and their Interaction Relevant to Biology

If trypsin cleaved at Lys/Arg C-terminus, then total no. of fragment will be observed for given sequence