Following statements are regarding to PAR proteins and the establishment of polarity during early development in nematodes.

A. The internal cytoplasm contains PAR-3, PAR-6, and PKC-3, and the cortical cytoplasm contains PAR-2 and PAR-1.

B. PAR-3 and PAR-6, interacting with the protein kinase PKC-3 are uniformly distributed in the cortical cytoplasm. PKC-3 restricts PAR-1 and PAR-2 to the internal cytoplasm by phosphorylating them.

C. Once PAR-1 is in the cortical cytoplasm, it phosphorylates PAR-3, causing PAR-3 (and its binding partner, PKC-3) to leave the cortex.

D. During first cleavage, the metaphase plate is closer to the posterior, and the fertilized egg is divided into two cells, one having the anterior PARs (PAR-1 and PAR-2) and one having the posterior PARs (PAR-3 and PAR-6).

Which of the following statements are correct?

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#Question id: 23041

#Unit 12. Applied Biology

Which of the following return to the carbon cycle after incineration?

1. Coal

2. Oil

3. Natural gas

4. Water

Which of the following is correct?

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#Question id: 10585

#Unit 10. Ecological Principles

Per capita birth rate of this population is b and per capita death rate of population is d, N is a population size. What is yield of population per unit time as?

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#Question id: 28336

#Unit 5. Developmental Biology

Which of the following gene has the ability to divide the embryo into 14-segment-wide units, establishing the periodicity of the embryo?

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#Question id: 4151

#Unit 3. Fundamental Processes

The signal sequences that direct proteins to the nucleus are:

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#Question id: 1477

#Unit 4. Cell Communication and Cell Signaling

The effector proteases in the apoptotic pathway, the caspases, are so named because