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Questions tagged [stem-cells]

Cells which have not fully differentiated yet, i.e. with the potential to develop into other kinds of cells through asymmetric cell division.

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1answer
5k views

What is the difference between pluripotent and totipotent cells?

Both develop into specialized cells.Then how are they different?
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2answers
4k views

Can brain cells move?

I was discussing this with my brother. I'm pretty sure I read somewhere that they can move. Thanks EDIT: By movement I mean long distance migration (preferably within the brain only).
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1answer
3k views

Is there any scientific evidence that a human has ever grown a third set of teeth?

This is about the possibility (or lack thereof) for a person to re-grow a new "permanent tooth" or set of teeth, to replace the teeth that grew after their milk teeth fell out. I had earlier seen ...
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3answers
685 views

Does a reduction in stem cells mean possible earlier death?

The basis of this question relies on my understanding of these 2 facts: ...
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1answer
134 views

How might IVF (and related technologies) alter epigenetic marks?

I was reading up on KCNQ1, which encodes a voltage-gated potassium channel, and I discovered that it happens to be only maternally expressed. This is regulated by KCNQ1OT1, a non-coding RNA, which is ...
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1answer
389 views

Could fingerprints potentially be changed using a gene gun?

Not to confuse with your "DNA fingerprint" I've read surgery is readily used to not just remove but even to change people's prints through employing very small grafts between opposing hands. About 5 ...
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2answers
2k views

How are different types of cells created from zygote?

In the process of mitosis that starts from zygote, how do different cells appear? What happens that some cells become one type and some another? For example, is there a cell that divides into a ...
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1answer
3k views

Role of Fbx15 in ES cells and its use in assaying for iPS cells (Yamanaka paper and others)?

I am trying to understand the assay for iPS cells in the Takahashi & Yamanaka 2006 paper. They inserted a beta-geo cassette, which contains the neomycin resistance gene, into the Fbx15 gene. The ...
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1answer
196 views

Can stem cells from male convert to cells of female-only organs, and vice versa? [duplicate]

As we know, stem cells can convert to different cells of other organs, can male use their own stem cells to convert it into cells of female-only organs(and vice versa)?