Based on the result in this
experiment, the mobile phase rose up on the TLC plate then dragged the ink from
the marked dot up along the TLC plate, which is the light pink pigment whose Rf
was 0.98 had the greatest affinity to the mobile phase. Moreover, the pigment
that was closer to the marked dot was more attracted to the stationary phase,
which is the dark pink spot that had an Rf of 0.72 and had a greater affinity to the
stationary phase.
Answer:
The end of the metaphase and beginning of anaphase is marked by the splitting of centromere so that two chromatids (In fact complete chromosomes) start moving to the opposite pole during anaphase. Thus the chromosomes divide at anaphase by the splitting of centromere.
so it's Pulled apart at the centromere (5th)
Explanation:
The large size of a egg makes it difficult for the female to retain more than a single one egg at a time - carrying eggs would make flying harder and require more energy. (Bird eggs vary in size from the tiny 0.2 gramme eggs of hummingbirds to the enormous 9 kilogram eggs of the extinct elephant bird.)
Just as an aircraft cannot fly if it is overweight, all female birds must dispense with the fertile egg as soon as it is formed. And because the egg is such a protein-rich high-nuitrition prize to all sorts of predators, birds must find a secure place to hatch their eggs. Although birds' eggs appear to be fragile, they are in fact extremely robust. The oval shape applies the same rules of engineering as an arched bridge; the convex surface can withstand considerable pressure without breaking. This is essential if the egg is not to crack under the weight of the sitting bird. It takes 26 pounds of pressure to break a swan's egg and 120 pounds to smash the egg of an ostrich.
