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Chức năng của Ribôxôm trong quá trình hình thành chuỗi axit amin (Làm ơn giúp mình với 🥺)

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Dũng Bùi

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- mARN rời khỏi nhân ra chất tế bào để tổng hợp chuỗi aa.
- Các tARN một đầu gắn với 1 aa, đầu kia mang bộ 3 đối mã vào ribôxôm khớp với mARN theo nguyên tắc bổ sung A – U; G – X để đặt aa vào đúng vị trí.
- Khi ribôxôm dịch 1 nấc trên mARN (mỗi nấc ứng với 3 nuclêôtit) thì 1 aa được nối tiếp
- Khi ribôxôm dịch chuyển hết chiều dài của mARN thì chuỗi aa được tổng hợp xong.

Lê Huy

1 năm trước

Chức năng của ARN ribôxôm (rARN) là: kết hợp với prôtêin tạo nên ribôxôm là nơi tổng hợp prôtêin.

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if you don't wear a helmet , you can't ride your bike => Unless

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Mark the letter A, B, C or D to indicate the word whose underlined part is pronounced differently from that of the rest in each of the following questions. 1. A. chopstick B. champion C. character D. cherry 2. A. supper B. hungry C. punish D. campus 3. A. warned B. reduced C. covered D. moved Mark the letter A, B, C or D to indicate the word that differs from the other three in the positionof primary stress in each of the following questions. 4. A. ancient B. spacecraft C. despite D. even 5. A. generous B. extensive C. resources D. eternal 6. A. regular B. poisonous C. atmosphere D. appliance Mark the letter A, B, C or D to indicate the correct answer to each of the following questions. 7. I suggest__some money for the poor children in our area.A. raise B. to raise C. raised D. raising 8. The firstof a book is sometimes very valuable.A. author B. edition C. type D. title 9. Oh dear, there’s a leak in my water pipe; I’ll have to call the.A. builder B. electrician C. carpenter D. plumber 10. You canmy surprise when I heard the news.A. see B. believe C. think D. imagine 11. They made themselves understood by usinglanguage.A. hand B. sign C. finger D. acting 12. Trains stop here in order topassengers only.A. pick up B. get off C. get on D. pull in 13. The telephone is said toby Alexander G. Bell. A. have invented B. be inventing C. have been invented D. being invented 14. She turned up at the party dressed in thestyle.A. final B. latest C. last D. actual 15. “Are you leaving?” – “Yes, but I wish Ito go.”A. don’t have B. won’t want C. mayn’t have D. didn’t have 16. That’s the artistpaintings are very fashionable. Trang 17 A. which B. who C. whose D. whom 17. we arrived late, we didn’t miss the first part of the show.A. Despite B. Even though C. In spite of D. However 18. You should hear Lucy playguitar. It’s wonderful.A. the B. a C. one D. any 19. I was angry with her.A. but it didn’t matter B. so she didn’t go away C. because she was rude to me D. and she is rude to me. Mark the letter A, B, C or D to indicate the most suitable response to complete each of thefollowing exchanges. 25. “Could you do me a favour, please?” “_”A. Sure. No problem.B. Do you really need help?C. No, thank you.D. Yes, and when’s that? 26. What’s your new address?” “_” A. It’s the old one. B. Go straight on. C. Flat 42B, 225 Addison Road. D. What do you want to know? Mark the letter A, B, C or D to indicate the word(s) CLOSEST in meaning to the underlinedword(s) in each of the following questions. 27. Many language learners do not try to learn all new words they come across.A. study B. like C. meet D. Thunderbird. 28 Electric cars are better for the environment. In addition, they can save money on petrol.A. In conclusion B. For example C. Nevertheless D. Furthermore Mark the letter A, B, C or D to indicate the word(s) OPPOSITE in meaning to the underlinedword(s) in each of the following questions. 29. The tendency to develop cancer, even in high-risk individuals, can be decreased by increasing theamount of fruit and vegetables in the diet.A. consuming B. growing C. lessening D. stopping 30. With butterflies in my stomach, he waited for his job interview.A. nervously B. patiently C. happily D. courageously Read the following passage and mark the letter A, B, C or D to indicate the correct word thatbest fits each of the numbered blanks.Birds are fascinating to many people, and bird watching is a popular hobby. The best time towatch birds is in the early morning, (31)_birds are usually very active at that time of day. Theobserver must keep still and quiet in order not to (32)_the birds away. If you live in a part ofthe world where migratory birds spend their breeding season, then you will have the (33)_tosee nest-building activity. Over the ages, different species of birds have evolved with different types ofnest-building skills. It makes an interesting study to (34)_the different types of nests built bybirds and to watch them as they build their nests. After the breeding season is over and the babies haveleft the nest, it is time for the birds to head for (35)_____parts of the world to spend the wintermonths. Birds navigate to their winter feeding grounds, using the stars or the sun as their guide. 31. A. so B. because C. though D. but 32. A. upset B. throw C. frighten D. worry 33. A. time B. prospect C. occasion D. opportunity 34. A. look at B. take after C. care for D. see off 35. A. warmer B. cooler C. hotter D. colder

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Với giá trị nào của m thì mỗi phương trình sau có hai nghiệm phân biệt ? Có nghiệm kép ? Vô nghiêm? X^2-2(m+1)x+m^2+2=0

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Suy nghĩ của em về hình ảnh những “chàng Lục Vân Tiên” trong cuộc sống hiện đại. giúp mình với các bợn ơi. bt tết ch mần xong :<<

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Choose the best answer.
I think you should buy ___ pack of mineral water instead. And you can also buy _ snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ____ cookies and soft candies.

378

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1 năm trước

Choose the best answer.
We should decorate our living room with _ orange banner. We also need ____ ribbons, balloons, party hats and costume.

288

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Choose the best answer.
I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.

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Chức năng của Ribôxôm trong quá trình hình thành chuỗi axit amin (Làm ơn giúp mình với 🥺)

2 câu trả lời

if you don't wear a helmet , you can't ride your bike => Unless

Với giá trị nào của m thì mỗi phương trình sau có hai nghiệm phân biệt ? Có nghiệm kép ? Vô nghiêm? X^2-2(m+1)x+m^2+2=0

Suy nghĩ của em về hình ảnh những “chàng Lục Vân Tiên” trong cuộc sống hiện đại. giúp mình với các bợn ơi. bt tết ch mần xong :<<

Choose the best answer.
I think you should buy ___ pack of mineral water instead. And you can also buy _ snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ____ cookies and soft candies.

Choose the best answer.
We should decorate our living room with _ orange banner. We also need ____ ribbons, balloons, party hats and costume.

Choose the best answer.
I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.

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Chức năng của Ribôxôm trong quá trình hình thành chuỗi axit amin (Làm ơn giúp mình với 🥺)

2 câu trả lời

if you don't wear a helmet , you can't ride your bike => Unless

Với giá trị nào của m thì mỗi phương trình sau có hai nghiệm phân biệt ? Có nghiệm kép ? Vô nghiêm? X^2-2(m+1)x+m^2+2=0

Suy nghĩ của em về hình ảnh những “chàng Lục Vân Tiên” trong cuộc sống hiện đại. giúp mình với các bợn ơi. bt tết ch mần xong :<<

Choose the best answer.I think you should buy _____ pack of mineral water instead. And you can also buy _____ snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ______ cookies and soft candies.

Choose the best answer.We should decorate our living room with _____ orange banner. We also need ________ ribbons, balloons, party hats and costume.

Choose the best answer.I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.

Đề thi - đề kiểm tra Xem thêm

Choose the best answer.
I think you should buy ___ pack of mineral water instead. And you can also buy _ snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ____ cookies and soft candies.

Choose the best answer.
We should decorate our living room with _ orange banner. We also need ____ ribbons, balloons, party hats and costume.

Choose the best answer.
I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.