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nalin [4]
2 years ago
12

If you look through a microscope and see a cell with chromosomes lined up two by two, what stage of cellular reproduction must y

ou be looking at?
1. mitosis only
2. meiosis I only
3. meiosis II only
4. either mitosis or meiosis I
5. either meiosis I or meiosis II
Biology
1 answer:
Ipatiy [6.2K]2 years ago
6 0

Answer:

2. meiosis I only

Explanation:

During the zygotene stage of prophase-I of meiosis-I, homologous chromosomes synapse and are paired up. These paired homologous chromosomes are called bivalents. These paired homologous chromosomes align themselves at the equatorial plate of the cell during metaphase-I. Therefore, when observed through a microscope, cells are shown lined up two by two. During meiosis-II and mitosis, individual chromosomes with two sister chromatids are aligned at the cell's equator in metaphase.

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