TLS Online TPP Program

#Question id: 2441


Which of the following statement(s) is (are) true of microtubule assembly?

a. GDP-tubulin normally assembles into microtubules.

b. Microtubule (-) ends grow faster than microtubule (+) ends.

c. Tubulin subunits assemble to form a protofilament.

d. Microtubules consist of multiple protofilaments.

e. Microtubules with a GTP cap will shorten.

#Unit 2. Cellular Organization
  1. c and d 

  2.  a and c  

  3.  b and e   

  4. d and e 

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TLS Online TPP Program

#Question id: 29098

#Unit 8. Inheritance Biology

A family in which club foot was inherited as an autosomal dominant trait. They discovered a mutation in the PITXI gene that caused club foot in this family. Through DNA testing, they determined that 11 people in the family carried the PITXI mutation, but only 8 of these people had club foot. Which of the following is the correct interpretation of the observation?

TLS Online TPP Program

#Question id: 33704

#Unit 2. Cellular Organization

Find true and false statements
A. Tandemly repeated sequences are liable to undergo misalignments during chromosome pairing
B. The sizes of tandem clusters tend to be homozygous in population
C. The smaller clusters of tandemly repeated sequences can be used to characterize individual genomes

TLS Online TPP Program

#Question id: 4748

#Unit 8. Inheritance Biology

Eye color in Drosophila present on X chromosome, Red eye color is dominant over white eye color. There is non disjunction in Meiosis I in female and normal meiosis in male. Female is white eye color was cross with red eye male. What will be expected phenotype in their progeny?

TLS Online TPP Program

#Question id: 20005

#Unit 12. Applied Biology

In plants proline is preferentially produced from _________under normal conditions

TLS Online TPP Program

#Question id: 33146

#Unit 2. Cellular Organization

Which of the following protein bind to CDK4 and CDK6 monomers, blocking their interaction with cyclin D and thus rendering these G1 CDKs inactive?