Several hypotheses explain the existence of monogamy.

1. Mate-guarding hypothesis, a male stays with a female to protect her from being fertilized by other males.

2. The male assistance hypothesis maintains that males remain with females to help them rear their offspring.

3. The female-enforced monogamy, females stop their male partners from being polygynous.

TLS Online TPP Program

#Id: 8934

#XL - T Zoology

Spindle assembly checkpoint pathway is active until every single kinetochore has attached properly to spindle microtubules

TLS Online TPP Program

#Id: 8615

#XL - T Zoology

Y15 & T14 are situated in the G-loop of the CDK, containing the consensus sequence GEGT14Y15GVV

TLS Online TPP Program

#Id: 8655

#XL - R Botany

TLS Online TPP Program

#Id: 8311

#XL - Q Biochemistry

Actin,

basic building block of microfilaments extraordinarily well conserved among eukaryotes.

TLS Online TPP Program

#Id: 9647

#XL - T Zoology

Constitutively active Raf kinase

a glutamic acid substitution for the valine at position 600