Cloned Sheep

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Navin
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Cloned Sheep

Post by Navin » Thu Nov 10, 2005 10:58 am

This qn came up for my O Level Biology. It was only 1 mark, not that significant, but it managed to stump me:

The nucleus of the egg of Sheep A was removed and replaced with a diploid nucleus also from Sheep A.
This cell is then placed in the womb of a different sheep. A baby lamb was born.

There are several advantages of placing the cell in the womb of a different sheep than in the womb of Sheep A. Give one advantage.

This was my answer:
The lamb would gain antibodies from the other sheep making it more resistant to diseases than sheep A.

What do you think?

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Navin
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Post by Navin » Sat Nov 12, 2005 8:12 am

Maybe i wasn't clear enough, sorry.

My question was Why use the womb of a surrogate mother sheep than that of the real mother?
Botany is the study of what? Bottoms!

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Post by Dr.Stein » Sat Nov 12, 2005 11:52 am

This is my opinion. Due to the removal of the egg from sheep A, there will be structural and hormonal changing of the ovarium which affects the uterine environment and the estrus cycle. This condition will lead to a failure of the development of the egg. So that's why they put the egg to another sheep which still have a normal environment.
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Navin
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Post by Navin » Sun Nov 13, 2005 6:03 am

Yes that is a probability. But ithought that the embryo also secretes hormones.


What do you think of my answer in my first post?. Is it plausible?
Last edited by Navin on Thu Nov 17, 2005 11:06 am, edited 2 times in total.

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Post by Navin » Thu Nov 17, 2005 11:03 am

I'll give it one last try-
Any thoughts?
Botany is the study of what? Bottoms!

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Post by scottyiu » Thu Dec 01, 2005 11:58 pm

I am not sure? But possibly because:

1) Many more of that sheep could be produced
2) The sheep might be weakened by having sheep so let other sheep bear it[/list]
This forum is so cool

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