Mutation

Mutation has changed the allelic frequency. it increases genetic variation within populations and between population.

TLS Online TPP Program

#Id: 8425

#XL - T Zoology

Fecundity - The number of offspring produced by an organism per reproductive episode. 

Parity - The number of reproductive episodes an organism experiences. 

TLS Online TPP Program

#Id: 9443

#XL - T Zoology

Parental care

Caring of young one– Prevent from predator and stress full condition, providing. Parental care is fixed action pattern.

Parental care and clutch size is inversionally proportional.

TLS Online TPP Program

#Id: 9887

#XL - T Zoology

Eat me” signals

Dying cells facilitate their own phagocytosis by expressing on their surfaces such as phosphatidyl serine and lysophosphatidyl choline, proteins (annexin I), and altered carbohydrates. 

TLS Online TPP Program

#Id: 9667

#XL - T Zoology

In cells, PI-3 kinase pathway :

Triggers cell division 

Prevents apoptosis

Induces specific changes in cell metabolism

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.