Two types of plant peroxisomes:

Present in leaves - participates in photorespiration.

Present in germinating seeds (glyoxysomes) - converts fatty acids into sugars.

TLS Online TPP Program

#Id: 9170

#XL - T Zoology

The overall change in allelic frequency

TLS Online TPP Program

#Id: 7350

#XL - T Zoology

Loop method for inbreeding coefficient 

Summation of all possible loop (1/2)n

n= number of individuals in loop except than inbreeding

TLS Online TPP Program

#Id: 9391

#XL - T Zoology

Supernormal’ stimuli - A stimulus that produces a more vigorous response than the normal stimulus eliciting that particular response.

TLS Online TPP Program

#Id: 9978

#XL - T Zoology

β-catenin binds to TCF to displace the Gro repressor and recruits co-activator proteins Pygo, LGS, to activate target gene expression.

TLS Online TPP Program

#Id: 9297

#XL - S Microbiology

Nitrite reductase

Nitrite (NO2-) is a highly reactive, potentially toxic ion.

Plant cells immediately transport the nitrite into chloroplasts or plastids.

The enzyme nitrite reductase reduces nitrite to ammonium.

Leaf chloroplasts and root plastids contain different forms of nitrite reductase.

Each polypeptide contains two prosthetic groups, an iron-sulfur group and a specialized heme.

NO3-, high sucrose conc, and light induce the transcription of nitrite reductase mRNA.

Asparagine and glutamine repress the induction.