Dense plastids serve as gravity sensors

Gravity does not form gradient.

The only way of sensing gravity is through the motion of a sedimenting body.

In plants intracellular gravity sensors are large, dense amyloplast.

Statoliths –amyloplasts that function as gravity sensors.

Statocytes-specialized gravity sensing cells in which statoliths are present.

TLS Online TPP Program

#Id: 7365

#Unit 5. Developmental Biology

Drosophila eggs undergo Superficial cleavage.

TLS Online TPP Program

#Id: 1515

#Unit 2. Cellular Organization

Doublet contains one complete 13-protofilament microtubule (A tubule) and one additional tubules (B tubule) consisting of 10 protofilaments.

 

TLS Online TPP Program

#Id: 8704

#Unit 1. Molecules and their Interaction Relevant to Biology

TLS Online TPP Program

#Id: 4773

#Unit 5. Developmental Biology

TBX-35 inhibits pal-1 gene expression, preventing the MS cell from acquiring the C-blastomere fates.

TLS Online TPP Program

#Id: 8449

#Unit 1. Molecules and their Interaction Relevant to Biology

The first 4 amide hydrogens and the last 4 carbonyl oxygens cannot participate in helix H bonds.