TLS Online TPP Program

#Question id: 2994


If a cell has completed meiosis I and the first cytokinesis, and is just beginning meiosis II, which of the following is an appropriate description of its genetic contents?

#Unit 2. Cellular Organization
  1. It has half the amount of DNA as the cell that began meiosis.

  2. It has half the chromosomes but twice the DNA of the parent cell.

  3. It has one-fourth the DNA and one-half the chromosomes as the parent cell.

  4. It is genetically identical to another cell formed from the same meiosis I event.

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TLS Online TPP Program

#Question id: 12484

#Unit 2. Cellular Organization

Match the following.

Column I

Column II

A. APC/CCdc20

i . responsible for ubiquitinating proteins, such as mitotic cyclins

B. APC/CCdh1

ii. responsible for destroying proteins, such as securin

 

iii. promotes the metaphase–anaphase transition

 

iv. Promotes exit from mitosis


Which of the following is correct?

TLS Online TPP Program

#Question id: 12485

#Unit 2. Cellular Organization

Following statements are regarding to the centrosome cycle of an animal cell.
A. During G1, the daughter procentrioles continue to elongate.
B. During S phase, daughter procentrioles form adjacent to maternal centrioles so that two pairs of centrioles become visible within the centrosome. 
C. During G2 phase, the centrosome contains a single pair of centrioles.
D. At the beginning of mitosis, the centrosome splits, with each pair of centrioles becoming part of its own centrosome. As they separate, the centrosomes organize the microtubule fibres that make up the mitotic spindle.
Which of the following option is correct? 

TLS Online TPP Program

#Question id: 12486

#Unit 2. Cellular Organization

Which of the following process occur in prometaphase?

TLS Online TPP Program

#Question id: 12834

#Unit 2. Cellular Organization

How Aurora B and the spindle assembly checkpoint pathway collaborate during every cell cycle to accurately attach every single pair of sister chromatids to the mitotic spindle in the correct, bioriented manner?

TLS Online TPP Program

#Question id: 12835

#Unit 2. Cellular Organization

Following statements are regarding to the surveillance mechanism. Which of the following statement is incorrect?

TLS Online TPP Program

#Question id: 12836

#Unit 2. Cellular Organization

The final layer of control that is critical in the regulation of CDKs is a family of proteins known as CDK inhibitors, or CKIs, which bind directly to the cyclin-CDK complex and inhibit its activity. Which of the following function not done by CKIs?