Phosphorylation on multiple sites by G1 CDKs blocks Rb from associating with E2F and promotes its export out of the nucleus.

TLS Online TPP Program

#Id: 9202

#XL - T Zoology

Disruptive Natural selection

Disruptive selection favors the survival of individuals at both extremes of a range, rather than the  intermediate.

Increase variance in the population because select those phenotype which are away from mean.

It maintain balance polymorphism and maximum selection coefficient value.

TLS Online TPP Program

#Id: 8939

#XL - T Zoology

checkpoint factors Bub1-Bub3, BubR1 and Mad2-C Together, these proteins form the mitotic checkpoint complex

TLS Online TPP Program

#Id: 9989

#XL - T Zoology

Disheveled stimulate activation of the small GTPases Rho and Rac, leading to cytoskeletal rearrangements and cell motility. 

TLS Online TPP Program

#Id: 7945

#XL - Q Biochemistry

Glycoproteins

Proteins with attached carbohydrates

TLS Online TPP Program

#Id: 9523

#XL - R Botany

Three major types of insect herbivores

Phloem feeders, such as aphids and whiteflies, cause little damage to the epidermis and mesophyll cells. Phloem feeders insert their narrow stylet, which is an elongated mouthpart, into the phloem sieve tubes of leaves and stems.