Unbalanced gene dosage leads to developmental abnormalities.

TLS Online TPP Program

#Id: 7083

#Unit 3. Fundamental Processes

TLS Online TPP Program

#Id: 621

#Unit 2. Cellular Organization

Attenuator riboswitch (Leader sequence) region 1 is translated  till UGA (R1-2) at high trp concentration due to two conditions

1. Ribosome quickly crosses codon 10, 11

2. After crossing codon 10, 11 ribosome prematurely terminated at UGA at the end of Region 1

TLS Online TPP Program

#Id: 6536

#Unit 7. System Physiology – Animal

Small depolarization of the plasma membrane triggers the opening of voltage- sensitive Ca2+ channels

TLS Online TPP Program

#Id: 5262

#Unit 7. System Physiology – Animal

In cardiac muscle, the action potential is caused by opening of three types of channels: 

Voltage activated fast sodium channels 

L-type calcium channels (slow calcium channels or calcium-sodium channels)

Voltage activated potassium ion channels

TLS Online TPP Program

#Id: 6797

#Unit 3. Fundamental Processes

Dicer is constructed of three modules: two RNase III domains and a dsRNA-binding domain called the PAZ domain (named for three proteins that contain this domain: Piwi, Argonaute, and Zwille).