Natural selection was Darwin’s brilliant hypothesis, independently conceived by Wallace, that accounts for adaptations, features that appear “designed” to fit organisms to their environment.

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#XL - T Zoology

Condensins package chromosomes by creating loops by forming intrachromosomal linkages and causes reduction in chromosome length, up to 10,000-fold in vertebrates.

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#Id: 8918

#XL - T Zoology

Centralspindlin is a heterotetramer composed of two copies of the kinesin-6 motor protein MKLP1 and a dimer of a Rho GAP

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#XL - T Zoology

Sphingosine itself can be phosphorylated to produce sphingosine-1-phosphate (S1P) inside cells. 

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#XL - R Botany

Collenchyma cells

Collenchyma cells are generally elongated cells that have thicker primary walls than parenchyma cells,

Collenchyma cells provide flexible support without restraining growth

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#Id: 9165

#XL - T Zoology