What are induced pluripotent stem cells?
A. adult stem cells that have been made in the laboratory
B. adult stem cells that are reprogrammed to become embryonic stem cells to produce new embryos
C. totipotent stems cells from a zygote that have been induced to become pluripotent
D. inner mass cells that have been removed without killing the embryo
A. adult stem cells that have been made in the laboratory
You might also like to view...
In 1999, researchers found that they could create hybrid embryos between two species of sea urchin that had been separated for 10 million years. By treating eggs to remove the jelly coat, the sperm of the other species was able to fertilize. What step of the fertilization process is normally blocked, preventing hybridization between these species?
A. Sperm penetration B. Membrane fusion C. Egg activation D. Nuclear fusion Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about fertilization? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
What happens to an astronaut who spends 2 months in the weightless environment of a space capsule?
A) Bone density increases and muscle mass increases. B) Bone density decreases and muscle mass increases. C) Bone density decreases and muscle mass decreases. D) Bone density increases and muscle mass decreases.
The Dutch merchant who made and used quality magnifying lenses to see and record microorganisms was
A. Robert Koch. B. Louis Pasteur. C. Antonie van Leeuwenhoek. D. Francesco Redi. E. Joseph Lister.
A molecule can act as both a neurotransmitter and a hormone.
Answer the following statement true (T) or false (F)