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The idea of cloning animals
was presented by _____ in 1938. |
Spemann
|
Therapeutic cloning
successfully addresses the key problem of ________________, which must be solved before embryonic stem cells can be used to repair damaged human organs. |
Immune acceptance
|
In therapeutic cloning, why
are the embryonic cells used to treat an individual not rejected by that individual? |
Because the embryonic cells
are cloned from the same individual they are injected into |
At what point does the U.S.
Supreme Court take the position that human life begins? |
When independent survival
is possible |
If a gene has been
methylated: |
the polymerase protein can no longer |
The cloning of
"Dolly" established that cloning an adult animal cell is possible. This is called: |
Reproductive cloning
|
Why were gene therapy
trials to treat severe combined immunodeficiency disease (SCID) halted in 2005? |
Some of the treated
children in the trial developed cancer. |
Ian Wilmut successfully
cloned Dolly the sheep from a fully differentiated sheep cell. This type of cloning is known as: |
Reproductive cloning
|
An adult stem cell differs
from an embryonic stem cell in that it is not: |
Pluripotent
|
A clear distinction between
therapeutic cloning and reproductive cloning is that: |
Therapeutic cloning
involves the eventual destruction of the embryo, whereas reproductive cloning does not |
Scientists in Scotland
figured out a novel method to clone cells successfully. It involved: |
Using an egg and a nucleus
that were at the same stage of the cell cycle |
Adult stem cells are just
as totipotent as embryonic stem cells. |
FALSE
|
One disease in which gene
therapy was used, but not successfully yet is: |
Cystic fibrosis
|
The first embryonic stem
cells that were discovered to be totipotent were isolated from a: |
Mouse
|
In animal cloning, DNA
donated from an adult stem cell: |
Has to be reprogrammed for
the gene expression needed for early development |