Avian egg shape: Form, function, and evolution

Avian egg shape: Form, function, and evolution

Avian egg shape: Form, function, and evolution M.C. Stoddard, E.H. Yong, D. Akkaynak, C. Sheard, J.A. Tobias, L. Mahadevan,  Science  356, 1249-1254, 2017.
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Abstract

components that are required to assemble
chromosomes in a test tube (9). Three components were found to be essential: histones,
together with assembly factors that they
require to load onto DNA; condensin; and
topoisomerase II. The latter is an enzyme
that allows DNA strands to pass each other,
thereby preventing DNA from getting hopelessly tangled up.