The ends of eukaryotic chromosomes are called <span>telomeres.</span>
Answer:
I think a because fossils do stay for a very long time ribbit
It's D because it's found in the <span>cell's plasma membranes (at high concertration levels)
Hope this helps!! :-)</span>
The category is just called plants
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Crossing over occurs at the four-strand stage when two homologous chromosomes, each consisting of a pair of sister chromatids, are paired. Each crossover involves just two of the four strands and generates two recombinant strands.
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