TLS Online TPP Program

#Question id: 5598


The vitelline envelope of the sea urchin egg

#SCPH01 Biochemistry
  1. is outside of the fertilization membrane

  2. releases calcium, which initiates the cortical reaction

  3. has receptor molecules that are specific for binding acrosomal proteins

  4. is first visible only when organogenesis is nearly completed

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TLS Online TPP Program

#Question id: 16014

#SCPH05 I Biotechnology

What are the main constituents of culture for animal cell growth?

TLS Online TPP Program

#Question id: 834

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

How the proteosome inhibitors  are potentially used in treatment of cancerous cells ?

TLS Online TPP Program

#Question id: 15900

#SCPH05 I Biotechnology

During development of a somatic embryo from a single superficial cell of the explant, the cells of this meristematic mass continue to divide to give rise to the various stages of SEs. Which of the following is considered correct for the development of SEs?

TLS Online TPP Program

#Question id: 9254

#SCPH28 | Zoology

Organisms evolve over generations to become adapted to the environmental conditions to which they are exposed. The diversity of organisms that
occurs in any particular area thus may be largely determined by the abiotic factors limiting survivorship and reproduction of organisms in a region. Which of the following limit the range of Saguaro cactus in North America?

I) pollinators

II) sunlight

III) precipitation

IV) temperature

TLS Online TPP Program

#Question id: 10507

#SCPH05 I Biotechnology

Rhizobacteria function as

 a) Nitrogen fixation

 b) depositing pathogens directly into the vascular system,

 c) producing antibiotics and antifungal agents for inhibiting soil pathogens

 d) herbivore sensors by sending electrical or chemical signals to surrounding cells

 Which one of the following combination is correct?