Prime Time 7/8, Language in Use, Arbeitsheft

Genetic engineering a) Choose the correct word in each pair and write down the sentence. British scientists at the University of Sheffield Centre for Stem Cell Biology have ( announced • denounced ) (1) that it may one day be possible to clone human eggs and ( spam • sperm ) (2) from stem cells. This means the entire process of human ( conception • perception ) (3) could take place in a science laboratory. It would revolutionise fertility treatments for ( couples • couplets ) (4) unable to have children of their own as well as enable same-sex couples to have children that ( shape · share ) (5) the genetic code of both partners. Fertility scientists ( described • inscribed ) (6) the research as an exciting step forward. The ( earliest • latest ) (7) findings are believed to have huge implications for the way studies that investigate the ( processes • production ) (8) of egg and sperm development can be ( overtaken • undertaken ) (9) . Nevertheless, we are still in the early stages of fully understanding the biology of conception. Up to now, scientists cannot entirely explain why some men and women are ( impotent • infertile ) (10) , which means that they cannot produce sperm and eggs of their own. b) You are going to read a text about human cloning. In most lines of the text there is a word that should not be there. Write that word in the space provided after each line. Some lines are correct. Indicate these lines with a tick ( ü ). There are two examples at the beginning. On 5 July 1996, the most famous of sheep in modern history was born. of 0 IanWilmut and a group of Scottish scientists announced that they had ü 00 been successfully cloned a sheep named Dolly. If you stood Dolly beside Q1 a “naturally” conceived sheep, you wouldn’t notice any differences Q2 between the two. While Dolly’s birth certificate marked an incredible Q3 scientific breakthrough, it also set off questions in the scientific and global Q4 community about what – or who – might be next time to be “duplicated.” Q5 Cloning sheep and other nonhuman beings seemed more ethically Q6 benign to some than potentially cloning people. Re-engineering the Q7 human inside reproductive process has made many people nervous that Q8 although cloning crosses the ethical boundaries of science. But we can’t Q9 fully evaluate across the moral dilemma without first addressing the Q10 potential benefits of human cloning before. Therapeutic cloning holds the Q11 most promise of valuable medical advancement. Therapeutic cloning is Q12 the process by which a person’s DNA is not used to grow an embryonic Q13 clone. However, instead of inserting this embryo also into a surrogate Q14 mother, its cells are used to grow out stem cells. These stem cells could Q15 become the basis for customised human repair kits. They can grow Q16 replacement organs, such as hearts, livers and her skin. And since the Q17 stem cells would come from embryo clones using your own cell’s DNA, Q18 your body would not readily accept them. Yet, some scientists believe Q19 a today’s technology just isn’t ready to be tested on humans. Cloning Q20 technology is nevertheless still in its early stages, and nearly 98 per cent of Q21 cloning efforts moreover end in failure. Opponents of cloning point out Q22 that while we can euthanise defective clones of other animals shelters, it’s Q23 morally problematic if this happens during the human cloning process. Q24 3 91 18 Science and technology Nur zu Prüfzwecken – Eigentum des Verlags öbv