IAA is synthesises by tryptophan and is primarily synthesized in a two-step process 

Indole-3-pyruvate (IPyA) as the intermediate. 

The second step in the pathway is carried out by the YUCCA gene product, a tryptophan aminotransferase.

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: 5489

#Unit 10. Ecological Principles

Reproductive strategies

1.Semelparity

2.Iteroparity

Semelparity - When organisms reproduce only once during their life

Ex- insects, other invertebrates, and occurs in organisms such as salmon, bamboo grasses, and agave plants

Iteroparity - When organisms reproduce multiple times during their life.

It is common in most vertebrates and perennial plants, such as trees

TLS Online TPP Program

#Id: 5351

#Unit 10. Ecological Principles

λ represents the finite rate of population change over some time interval, often a year

λ = N1/N0

TLS Online TPP Program

#Id: 1654

#Unit 4. Cell Communication and Cell Signaling

Membrane bound antibody=IgM and IgD Secreted form antibody= IgA, IgE, IgG

TLS Online TPP Program

#Id: 1570

#Unit 4. Cell Communication and Cell Signaling

Homologs

LRP in vertebrates = Arrow in Drosophila.