During ubiquitin-mediated protein degradation in various events of cell cycle, ubiquitin-protein ligases ubiquitinylate substrate proteins, marking them for degradation by proteasomes. Cyclins are degraded through the action of two different ubiquitin-protein ligases, SCF and the anaphase-promoting complex or cyclosome. Following statements are regarding to SCF and APC/C.

A. SCF controls the G1–S phase transition by degrading G1/S phase cyclins and, CDK inhibitory proteins.

B. APC/C degrades S phase and mitotic cyclins, thereby promoting the exit from mitosis.

C. SCF and APC/C are multi-subunit ubiquitin-protein ligases that belong to the RING finger family of ubiquitin protein ligases.

D. SCF and APC/C belong to the different ubiquitin-protein ligase family, their regulation is same.

E. SCF recognizes its substrates only when they are phosphorylated.

F. SCF and APC/C both recognizes its substrates only when they are phosphorylated.

Which of the following is incorrect?

TLS Online TPP Program

#Question id: 26940

#Unit 10. Ecological Principles

There are some given models which are involved in the population growth, except?

TLS Online TPP Program

#Question id: 24578

#Unit 10. Ecological Principles

if ecologists count the number of birds after a year is 150 in the same population which have the finite rate of increase will be 1.5. Calculate the initial population size of given population?

TLS Online TPP Program

#Question id: 24576

#Unit 10. Ecological Principles

The birth of 100 cockroaches to a population of 1,000 would represent a birth rate. Similarly, the death of 50 cockroaches in a population of 1,000 would be a death rate, d, per individual per week. Calculate the rate of change in a population per unit time ?

TLS Online TPP Program

#Question id: 24575

#Unit 10. Ecological Principles

If the initial population size 1000 then given population birth rate is 0.55, and death rate is 0.45, then calculate the change in population per unit time?

TLS Online TPP Program

#Question id: 24574

#Unit 10. Ecological Principles

If number of birds in the population N0= 100 next year ecologists count 110 birds in the same population, consider a population of birds growing at a rate of 5% per year. After 5 years how many birds would there be?

TLS Online TPP Program

#Question id: 24573

#Unit 10. Ecological Principles

Calculate the finite rate of increase, if ecologists count the number of birds in the population, N0= 100, the next year ecologists count 110 birds in the same population,