Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 38270
TLS Online TPP Program

#Question id: 5080

As cleavage continues during frog development, the size of the blastomeres:

#I Life Science/ Life Sciences Group – I-V

  1. increases as the number of the blastomeres decreases

  2. increases as the number of the blastomeres increases

  3. decreases as the number of the blastomeres increases

  4. decreases as the number of the blastomeres decreases

More Questions
TLS Online TPP Program

#Question id: 2990

#I Life Science/ Life Sciences Group – I-V

Mitotic CDK complexes are maintained in an inactive state through inhibitory phosphorylation of the CDK subunit. Two highly conserved tyrosine and threonine residues in mammalian CDKs are subject to regulated phosphorylation.

Gene

  Mutant phenotypes

A. Wee1

i. the cell does not divide but continues to grow

B. CAK kinase

ii. mitotic cyclins are inactivated

C. cdc25 phosphatase

iii. premature entry into mitosis

The following table enlists genes and phenotypes observed on mutation of these genes but not correctly matched. Which one of the following combinations is correctly matched ?
TLS Online TPP Program

#Question id: 2271

#I Life Science/ Life Sciences Group – I-V

Depolymerization of microtubules is inhibited by
TLS Online TPP Program

#Question id: 3641

#SCPH01 Biochemistry

The point at which separation of the strands and synthesis of new DNA takes place is known as the:
TLS Online TPP Program

#Question id: 4963

#SCPH28 | Zoology

Which free-living cells were the earliest contributors to the formation of Earthʹs oxidizing atmosphere?
TLS Online TPP Program

#Question id: 3022

#I Life Science/ Life Sciences Group – I-V

Late log phase of the bacterial growth curve