In prophase 1:
Chromosomes become visible, crossing-over occurs, the nucleolus disappears, the meiotic spindle forms, and the nuclear envelope disappears.
In metaphase 1:
The pairs of chromosomes (bivalents) become arranged on the metaphase plate and are attached to the now fully formed meiotic spindle. The centrioles are at opposite poles of the cell.
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Answer:
photosynthesis and chemosynthesis.
Explanation:
Answer:The result of DNA replication is two DNA molecules consisting of one new and one old chain of nucleotides
Explanation:
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Answer:
B. they have many similar steps
Explanation:
