PYR/PYL/RCAR protein subfamily is conserved among plants ranging from eudicots to mosses,  these subfamily is a receptor for ABA stress hormone. These are  showing  following characters such as;

a) PYRABACTIN RESISTANCE1 (PYR1) which shows resistance to the synthetic  sulfonamide compound pyrabactin, which mimics ABA action

b) They interact with PP2C phosphatases in an ABA-independent manner to regulate the downstream activity of serine/ threonine protein kinases of the Sucrose non-Fermenting Related Kinase2 (SnRK2) family

c) the proteins are located in both the cytosol and nucleus

d) They interact with PP2C phosphatases in an ABA-dependent manner to regulate the downstream activity of serine/ threonine protein kinases of the Sucrose non-Fermenting Related Kinase2 (SnRK2) family

Which of the following combination from the above statements is correct?

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#Question id: 33345

#Unit 2. Cellular Organization

A culture was started by inoculating the medium with 100 cells having a generation time of 2 hours. Assuming the culture grows in ideal synchrony, what will be the number of cells in the culture at 8 hours?

TLS Online TPP Program

#Question id: 33346

#Unit 2. Cellular Organization

Growth of an organism was monitored at regular intervals of times and shown in the graph below. Around what time is the rate of growth zero?

TLS Online TPP Program

#Question id: 33347

#Unit 2. Cellular Organization

A rapidly growing bacterial species such as E. coli exhibits a typical phase of growth cycle in liquid nutrient broth (lag phase → log phase → stationary phase → death phase). If a bacterial culture has starting density of 10³ cells/ml has a lag time of 10 minutes and a generation time of 10 minutes, what will the cell density be at (cells/ml) 50 minutes?

TLS Online TPP Program

#Question id: 33351

#Unit 1. Molecules and their Interaction Relevant to Biology

When exposed to oxygen, isolated heme

TLS Online TPP Program

#Question id: 33352

#Unit 1. Molecules and their Interaction Relevant to Biology

The O₂ dissociation of myoglobin can be characterized by its fractional saturation, YO₂, which is defined as

TLS Online TPP Program

#Question id: 33353

#Unit 1. Molecules and their Interaction Relevant to Biology

Two proteins, X and Y, bind to the same ligand, A, with the binding curves shown below. Which statement is incorrect?