Question: “More than half of the animals humans farm to provide milk and meat for consumption are clones of animals created using SCNT.” The preceding statement is…
Answer Options: True False Correct Answer: False
Question: What is therapeutic cloning?
Answer Options: It is the use of reproductive cloning to produce service animals for people with disabilities. It is the use of cloning to produce new pharmaceuticals. It is a newer method used to create reproductive clones and will likely replace SCNT in the coming years. It is the use of cloning to produce embryonic stem cells that are genetically matched to a person who is sick. Correct Answer: It is the use of cloning to produce embryonic stem cells that are genetically matched to a person who is sick.
Question: What is cloning?
Answer Options: A process that produces non-living copies of organisms. Making mirror image copies of people or DNA. A process that produces genetically-identical copies of a biological entity. The process that produces fraternal twins. Correct Answer: A process that produces genetically-identical copies of a biological entity.
Question: What are the three types of artificial cloning discussed in this course?
Answer Options: We only discussed two types of artificial cloning: molecular cloning and DNA cloning. Reproductive cloning, natural cloning, embryo splitting. SCNT, IVF, and DNA. Molecular cloning, reproductive cloning, therapeutic cloning. Correct Answer: Molecular cloning, reproductive cloning, therapeutic cloning.
Question: When a baby is born from an embryo created by SCNT, from whom does it inherit its genetic traits?
Answer Options: Babies born from an embryo created by SCNT inherit all their traits from the egg donor. Babies born from an embryo created by SCNT inherit genetic traits from both their biological mom and biological dad. Babies born from an embryo created by SCNT inherit all their traits from the somatic cell donor. Babies born from an embryo created by SCNT inherit about half their genetic traits from the somatic cell donor and half from the egg donor. Correct Answer: Babies born from an embryo created by SCNT inherit all their traits from the somatic cell donor.
Question: “An enucleated egg cell is an egg cell that has had its nucleus removed.” The preceding statement is…
Answer Options: True False Correct Answer: True
Question: “SCNT is performed in the following order: an egg cell is enucleated; a nucleus from a somatic cell is transferred to the egg cell.” The preceding statement is…
Answer Options: True False Correct Answer: True
Question: Dolly was the somatic cell donor for the first sheep that was cloned for therapeutic use.
Dolly’s embryo was the first to be created using in vitro fertilization. Dolly was the first animal ever cloned. Answer Options: Dolly was the somatic cell donor for the first sheep that was cloned for therapeutic use. Dolly’s embryo was the first to be created using in vitro fertilization. Dolly was the first animal ever cloned. Correct Answer: Dolly was the first animal ever cloned.
Question: “Before Dolly, a variety of other animals had been cloned through different processes.” The preceding statement is…
Answer Options: True False Correct Answer: True
Question: How do scientists hold the cells still while they are performing SCNT?
Answer Options: They hold the cells with small tweezers. They place the cells in slight depressions (bowls) on a glass surface. They apply slight suction on the cell through a holding pipette. They do not need to hold them because the cells are statically attracted to the glass needle used to manipulate the cells. Correct Answer: They apply slight suction on the cell through a holding pipette.
Question: “While some people have claimed to have cloned a human, these reports have never been verified by the scientific community.” The preceding statement is…
Answer Options: True False Correct Answer: True
Question: “The United States Food and Drug Administration (FDA) has declared that meat and milk from cloned animals are safe as those from non-cloned animals.” The preceding statement is…
Answer Options: True False Correct Answer: True
Question: What is a benefit or limitation of therapeutic cloning?
Answer Options: Because it can produce so many more service dogs, more people will be able to receive one. Embryos created for the purpose of therapeutic cloning are often destroyed when the embryonic stem cells are harvested, which raises an ethical issue for many people. The stem cells created would not be genetically identical to the person who needs them, and so might be rejected by their body. It can be used to save the lives of people with severe genetic diseases, by making healthy copies of their cells containing repaired DNA. Correct Answer: Embryos created for the purpose of therapeutic cloning are often destroyed when the embryonic stem cells are harvested, which raises an ethical issue for many people.
Question: What is reproductive cloning?
Answer Options: Making younger copies of whole animals. The process used to put genes into plasmids. The process of making a new uterus to replace one lost through injury or disease. Making copies of egg and sperm cells in the lab, then combining them using in vitro fertilization (IVF). Correct Answer: Making younger copies of whole animals.
Question: What are the three types of artificial cloning discussed in this course?
Answer Options: Reproductive cloning, natural cloning, embryo splitting Molecular cloning, reproductive cloning, therapeutic cloning IVF, SCNT, and DNA We only discussed two types of artificial cloning: molecular cloning and DNA cloning Correct Answer: Molecular cloning, reproductive cloning, therapeutic cloning.
Question: In an animal, what is the difference between a somatic cell and a reproductive cell (egg or sperm) at the genetic level?
Answer Options: Somatic cells have mitochondria (which have their own DNA), while egg and sperm cells do not. While most somatic cells in an animal have two copies of each chromosome, sperm and egg cells only have a single copy of each chromosome. There is no difference at the genetic level – somatic cells and reproductive cells both carry all the genetic material of the body in which they were made. Only egg and sperm cell DNA can be used to create an embryo. Correct Answer: While most somatic cells in an animal have two copies of each chromosome, sperm and egg cells only have a single copy of each chromosome.
Question: “An enucleated egg cell is an egg cell that has received a second nucleus from a donated sperm cell.” The preceding statement is…
Answer Options: True False Correct Answer: False
Question: “SCNT is performed in the following order: an egg cell is enucleated; a nucleus from a somatic cell is transferred to the egg cell.” The preceding statement is…
Answer Options: True False Correct Answer: True
Question: What was the importance of Dolly the sheep?
Answer Options: Dolly was the first mammal that was cloned from an adult animal and was born alive. Dolly was the somatic cell donor for the first sheep that was cloned for therapeutic use. Dolly’s embryo was the first to be created using in vitro fertilization. Dolly was the first animal ever cloned. Correct Answer: Dolly was the first mammal that was cloned from an adult animal and was born alive.