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Lina20 [59]
3 years ago
5

Why is the use of stem cells so controversial?

Biology
1 answer:
ICE Princess25 [194]3 years ago
3 0
Stem cells are undifferentiated cells that could develop to perform a variety of tasks. One type of stem cell is the embrionic stem cell. There are also adult stem cells. To use embrionic stem cell you need to have fertilized embrios. These can be donated to research. The use of the embrionic stem cells is controversial for this reason.
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Why would a larger city have a larger demand for water
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3 years ago
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A diploid cell has 28 chromosomes. When meiosis occurs, how many chromosomes are there during Prophase I?
murzikaleks [220]

Answer:

The correct answer will be option-B

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Meiosis produces four daughter cells from a single parent cell in two stages that is meiosis I and II. Each stage proceeds in four phases- prophase, metaphase, anaphase and telophase.

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