In bright light, little transducin is found in the outer segment, and abundant arrestin is found there; in this condition,vision is relatively insensitive to small changes in light.

TLS Online TPP Program

#Id: 9180

#XL - T Zoology

Average fitness

In a species, only 1 of every 1000 seeds survives to reproductive age, and that those that survive produce an average of 3000 seeds. 

TLS Online TPP Program

#Id: 10804

#XL - R Botany

phytoalexins, antimicrobial compounds synthesized in response to bacterial or fungal infection that help limit the spread of the invading pathogen.

TLS Online TPP Program

#Id: 5511

#XL - T Zoology

Populations of some species are prone to extinction for two reasons

1. The landscapes they live in are patchy (making dispersal between populations difficult).

2. Environmental conditions often change in a rapid and unpredictable manner.

TLS Online TPP Program

#Id: 9532

#XL - R Botany

Pathogen genome sequencing (NGS & GBS) enables definition of the complete repertoire of predicted genes for a plant pathogenic species

TLS Online TPP Program

#Id: 8682

#XL - R Botany