TLS Online TPP Program

#Id: 8929

#XL - T Zoology

Chk1, Chk2, and MK2

cause cell cycle arrest by inhibiting Cdc25

stabilizing the transcription factor p53, which induces the transcription of CKI p21 

TLS Online TPP Program

#Id: 10605

#XL - R Botany

III. Vascular plants  (pteridophyta)

EVOLUTION OF LEAVES

spore-bearing leaves called sporophylls

In terms of size and complexity, leaves can be classified as either microphylls or megaphylls

TLS Online TPP Program

#Id: 8894

#XL - R Botany

Syntelic attachment 

Both kinetochores of a sister chromatid pair can attach to microtubules from the same pole

TLS Online TPP Program

#Id: 10763

#XL - R Botany

Androecium

Each anther is usually bilobed and each lobe has two chambers, the pollen-sacs.

The pollen grains are produced in pollen-sacs. A sterile stamen is called staminode

TLS Online TPP Program

#Id: 9335

#XL - T Zoology

Drosophila homolog of TGF-β = Dpp