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Is it possible to swap genetic material between sperm and egg cells?

Is it theoretically possible to extract the genetic material from, say, a sperm cell, and replace it with that taken from an egg? With the intention that the sperm fertilise a second egg, creating offspring from parents of the same sex. If not - for the sake of curiosity - why not? 
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Categories: Human Body.

Tags: genetics.

 

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Why do we have 5 fingers instead of 6 or more (from Genevieve, aged 5)
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Categories: Human Body.

Tags: humanbody, hands, fingers, Digits.

 

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What is a hangnail? And why do they appear when I bite my nails?
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Categories: Human Body.

Tags: skin, nail, bite, hangnail.

 

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Where is the mind? and what do you think it would look like if you could see it?
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  • Asked by DRenny
  • on 2011-01-20 16:09:09
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Categories: Human Body.

Tags: Mind.

 

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Over what quantity is eating eggs harmful, like two in a single meal,and to which organs?

I'm asking since there's a friend of mine, who states that thanks to "biotin", thay are basically harmless, so he eats them 2 in a row.
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  • Asked by Liquid
  • on 2011-01-20 13:54:20
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Categories: Human Body.

Tags: Food, eggs, harmful.

 

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Why can foods from distinct origins taste similar? Do they share some compounds or do distinct compounds share homologous parts?

Why is it that wines can be described as tasting of other fruits, such as melons or strawberries? Why do some stouts taste of coffee or chocolate (excluding, of course,those where these ingredients have been added)? My ideas were- -small amounts of identical compounds can be found in both foods. -they each contain distinct compounds, but whose molecules share some homology, so activate the same olfactory receptors -the compounds are different but the same olfactory receptors can be activated by a small range different ligands. I wonder if a flavorist or someone who knows lots about olfaction could clear this up for me.
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Categories: Human Body.

Tags: Food, taste, wine, flavour, beer, receptor, ligand, olfaction.

 

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How do we define genius and how do you know if you have a gifted child....

Is there a test for determining Genius???
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Categories: Human Body.

Tags: brain.

 

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Blood acidity

From what depends blood acidity
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Categories: Human Body.

Tags: humanbody.

 

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Blood acidity

From what depends blood acidity?
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Categories: Human Body.

Tags: humanbody.

 

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Why does it feel so horrible to read red text on green background...

or any text on any beckground that is not darker or brighter but just another colour?

Are the cones somehow less fit for reading than the rods?

No one minds looking for red cherries among green leaves.
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Last edited on: 2011-01-19 17:14:51

Categories: Human Body.

Tags: colour, eye.

 

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