Most people assume that cloning refers only to a whole organism, or reproductive cloning. Explain how therapeutic cloning is different from reproductive cloning
What will be an ideal response?
Whereas reproductive cloning is used to create a new individual, therapeutic cloning is not. In therapeutic cloning, the nucleus from an individual would be placed into an egg from which the nucleus was previously removed to create an embryo. This embryo would divide in order to produce stem cells. Those cells would then be removed and coerced to differentiate into a specific type of cell (and not into a new organism), which would be transplanted into a patient. The transplanted cells are used to replace faulty cells.
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What does the figure suggest about patterns of biodiversity for particular groups of organisms?
A) Species diversity is highest at the equator. B) Species diversity is highest at the poles. C) Climatic influences are most important in determining areas of higher diversity. D) Diversity patterns are unpredictable.
Which reproductive isolation mechanism is defined by the prevention of genetic exchange between two species because
they reproduce at different times of the day or year? a. diurnal isolation b. sexual isolation c. annual isolation d. temporal isolation e. mechanical isolation
Which of these groups consist of parasitic flagellated cells, such as Trypanosoma, the organism that causes sleeping sickness?
A) metazoans B) kinetoplastids C) diatoms D) brown algae E) ciliates
All the offspring of a cross between a black-eyed Mendelian and an orange-eyed Mendelian have black eyes. What is the expected phenotypic ratio of a cross between two orange-eyed Mendelians?
A) 3 black-eyed:1 orange-eyed B) 0 black-eyed:1 orange-eyed C) 1 black-eyed:3 orange-eyed D) 1 black-eyed:0 orange-eyed