TLS Online TPP Program

#Question id: 1393


In research on aging (both cellular aging and organismal aging), it has been found that aged cells do not progress through the cell cycle as they had previously. Which of the following, if found in cells or organisms as they age, would provide evidence that this is related to cell signalling?

#SCPH05 I Biotechnology
  1. Growth factor ligands do not bind as efficiently to receptors.

  2. Hormone concentrations decrease.

  3. cAMP levels change very frequently.

  4. Enzymatic activity declines.

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TLS Online TPP Program

#Question id: 5044

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

The cell might not look different from its nearest or most distant neighbors in the embryo and show no visible signs of differentiation, but its developmental fate has become restricted, the process known as-

TLS Online TPP Program

#Question id: 5044

#SCPH06 I Botany

The cell might not look different from its nearest or most distant neighbors in the embryo and show no visible signs of differentiation, but its developmental fate has become restricted, the process known as-

TLS Online TPP Program

#Question id: 5044

#SCPH28 | Zoology

The cell might not look different from its nearest or most distant neighbors in the embryo and show no visible signs of differentiation, but its developmental fate has become restricted, the process known as-

TLS Online TPP Program

#Question id: 5045

#SCPH01 Biochemistry

When the four blastomere pairs of the 8-cell embryo are dissociated, each forms the structures it would have formed had it remained in the embryo, that means it undergoes to-

TLS Online TPP Program

#Question id: 5045

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

When the four blastomere pairs of the 8-cell embryo are dissociated, each forms the structures it would have formed had it remained in the embryo, that means it undergoes to-

TLS Online TPP Program

#Question id: 5045

#SCPH06 I Botany

When the four blastomere pairs of the 8-cell embryo are dissociated, each forms the structures it would have formed had it remained in the embryo, that means it undergoes to-