Before a mobileular starts to divide, its chromosomes are first replicated into copies, one for every daughter mobileular. Once the chromosomes are replicated, they start to condense and coil tightly.
During metaphase, the chromosomes line up throughout the middle of the mobileular. During anaphase, the chromosomes separate and flow alongside spindle fibers to contrary ends of the mobileular. During telophase, the chromosomes, which had been wonderful and condensed, start to unfold out into tangle of chromatin.
As mitosis progresses, the microtubules connect to the chromosomes, that have already duplicated their DNA and aligned throughout the middle of the mobileular. The spindle tubules then shorten and flow closer to the poles of the mobileular. As they flow, they pull the only reproduction of every chromosome with them to contrary poles of the mobileular.
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Answer:
Darwin's finches are a classic example of an adaptive radiation. Their common ancestor arrived on the Galapagos about two million years ago. During the time that has passed the Darwin's finches have evolved into 15 recognized species differing in body size, beak shape, song and feeding behavior.
The answer is microspore and megaspore. hope that helped