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TLS Online TPP Program

#Question id: 5818

How does recombinational repair differ from nucleotide excision repair (NER)?

#Unit 8. Inheritance Biology

  1. Unlike NER, recombinational repair is unable to repair damage caused by thymine dimers.

  2. NER replaces the thymine dimmer while recombinational repair leaves it in place.

  3. NER requires DNA polymerase and ligase function, while recombinational repair does not.

  4. NER involves nick translation, which recombinational repair does not.

More Questions
TLS Online TPP Program

#Question id: 26507

#Unit 3. Fundamental Processes

Which of the compound are shown below
TLS Online TPP Program

#Question id: 21123

#Unit 12. Applied Biology

Which one of the following is a detection device or transducer for nucleic acid biological material?
TLS Online TPP Program

#Question id: 19789

#Unit 13. Methods in Biology

How to determine the size of PCR product?
TLS Online TPP Program

#Question id: 5673

#Unit 5. Developmental Biology

Species-specific sperm attraction has been documented in numerous species. In echinoderms, sperm are attracted toward eggs of their species by chemotaxis. Following statements are about chemoattraction-

A. In this process Sperm follows a gradient of a chemical secreted by the egg.

B. These oocytes control only the type of sperm they attract, but not the time at which they attract them.

C. Releasing the chemotactic factor only when the sea urchin egg has completed all of its meiotic divisions .

D. Releasing the chemotactic factor only when the sea urchin egg is in second metaphase of its meiotic division.

E. The mechanisms of chemotaxis differ among species and chemotactic molecules are different even in closely related species.

Which of the following statement are incorrect about this process?
TLS Online TPP Program

#Question id: 12188

#Unit 2. Cellular Organization

The series of events by which APC/C promotes the separation of sister chromatids at anaphase.
A. all the kinetochores have attached to spindle microtubules and the spindle apparatus is properly assembled and oriented.
B. Cdc20 specificity factor associated with APC/C directs it to ubiquitinylate securin and mitotic cyclins. 
C. A protease known as separase cleaves the cohesin subunit Scc1 (Rad21), breaking the protein circles linking sister chromatids.
D. anaphase begins as poleward force exerted on the kinetochores moves the split sister chromatids toward opposite spindle poles.
E. Following securin degradation and a decrease in mitotic CDK activity.
Which of the following series is correct?