G bakieva, M. Rahmanova, sh. Turgunova language aspect

Match these words and word expressions with their definitions:

1. 
   Cloning a) an animal organism in the early stages of growth
   
2. 
   Cell b) part of an organism consisting of an aggregate of cells
   
3. 
   Genetic defect c) a copy that corresponds to an original exactly
   
4. 
   Implantation d) a part of the cell responsible for growth and reproduction
   
5. 
   Donor e) provide physical relief, as from pain
   
6. 
   Fertilize f) making a full living copy of an organism
   
7. 
   Reproduction g) the basic structural and functional unit of all organisms
   
8. 
   Alleviate h) a disease or disorder that is inherited genetically
   
9. 
   Nucleus i) the act of planting or setting in the ground
   
10. 
    Duplicate j) to provide with fertilizers or add nutrients
    
11. 
    Tissue k) the act of making copies
    
12. 
    Embryo l) person who makes a gift of property
    

2. 
   Fill the missing letters in these sentences with the words from the exercise # 1:
   

Cloning animals started way back in the 1950s when the first frogs were reproduced. In 1996 British scientists cloned the first mammal, a sheep called Dolly. Since then the _l _ _ _ _ _ of mice, cattle, cats and other mammals has been successful.
Animals have billions of _e_ _ _. The _u_ _ _ _s of such a cell has genetic information called DNA. This egg cell has the genetic information as that of the _o_ _ _ animal. The cell then grows into an _m_ _ _ _.
In therapeutic cloning stem cells are reproduced in order to create new organs and _i_ _ _ _. Some researchers use therapeutic cloning to understand _e_ _ _ _с _ _ _e_ _. Supporters argue that therapeutic cloning holds great promise to _ _l_ _i_ _ _ human suffering and advance human knowledge.
In assisted reproduction, the sperm of a male donor is brought together with the egg of a female donor, just like in natural _ _ _r_ _ _ _t_ _ _.