TLS Online TPP Program

#Question id: 3265


If the curve shifts to the left or to the right, there is no gene flow, and the population size consequently increases over successive generations, then which of these is (are) probably occurring?

#Part-A Aptitude & General Biotechnology
  1. Immigration or emigration                       

  2. Directional selection

  3. Genetic drift                

  4. Disruptive selection

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TLS Online TPP Program

#Question id: 2968

#Part-B Specialized Branches in Biotechnology

What is the name of the microtubule-organizing center found in animal cells as an identifiable structure present during all phases of the cell cycle?

TLS Online TPP Program

#Question id: 2969

#Part-B Specialized Branches in Biotechnology

In the cells of many eukaryotic species, the nuclear envelope has to disappear to permit which of the following events in the cell cycle?

TLS Online TPP Program

#Question id: 2976

#Part-B Specialized Branches in Biotechnology

Match the following Regulators with its functions.

Column I

Column II

A.  Wee1 kinase

i. Degradation of phosphorylated Sic1 or p27KIP1

B. Cdc25A phosphatase

ii. Induces degradation of B-type cyclins

C. APC/CCdc20

iii. Activates vertebrate S phase CDKs

D. SCF

iv. Inhibits CDKs

Which of the following is correct?

TLS Online TPP Program

#Question id: 2982

#Part-B Specialized Branches in Biotechnology

Match the following proteins (Column I) with their functions (Column II) during cell cycle.

Column I

Column II

A. Cdc25C phosphatase

i. Activates vertebrate S phase CDKs

B. INK4

ii. Activation of Mitotic CDKs

C. Cdc25A phosphatase

iii. Binds and inhibits G1 CDKs

D. APC/CCdc20

iv. Degradation of securin

TLS Online TPP Program

#Question id: 2987

#Part-B Specialized Branches in Biotechnology

Following statements are regarding the goals of gap phases.

(i) to prepare for the next phase of the cell cycle.

(ii) to check that the previous phase of the cell cycle has been completed appropriately.

(iii) to inhibits CDKs activity.

(iv) to enhance servillance mechanisms.

Which of the following is correct?

TLS Online TPP Program

#Question id: 2988

#Part-A Aptitude & General Biotechnology

Use the figure to answer the question below. 

If the cell whose nuclear material is shown in the figure continues toward completion of mitosis, which of the following events would occur next?