GIÚP MÌNH VỚi !!! Đang cần gấp ạ!

Câu 2 : Ở cà chua , gen A quy định quả đỏ trội hoàn toàn so với gen a quy định quả vàng .

a , Cây có quả đỏ có kiểu gen như thế nào ?

b . Xác định kết quả phép lai cà chua quả đỏ thuần chủng với cà chua quả vàng .

Viết sơ đồ lai từ P - F1

Câu 3 : Một gen có chiều dài 4080 angstron , Gen có A = T = 500 nucleotit .

a, Khi gen này nhân đôi một lần, môi trường đòi hỏi cung cấp mỗi loại nuclêôtit là bao nhiêu?

b, Một đoạn gen này sao ra một đoạn ARN có trình tự các nucleotit như sau :

A-U - X - X - G - U - U - X - G - X - A - A Viết trình tự các nucleotit của đoạn gen đã tổng hợp nên phân tử ARN trên

Cảm ơn nhiều nha!!!

Câu 1) Tâm thất trái mỗi lần co bóp đẩy đi 70 ml máu và trong một ngày đêm đã đẩy đi được 7560 lít máu, thời gian của pha giãn chung bằng 1/2 thời gian của chu kì tim, thời gian pha nhĩ co bằng 1/3 thời gian pha thất co. Hãy tính số chu kì tim trong một phút và thời gian diễn ra mỗi pha trong một chu kỳ tim.

Câu 2 Hệ tuần hoàn máu gồm những thành phần nào? Nêu cấu tạo của các thành phần trong hệ mạch, vì sao lại có sự khác nhau đó?

LISTENING (1.5 ms)
1. What sport or activity is the person talking about? Listen and circle the
correct answer.
B. going to the gym.
2. A. playing volleyball
3. C playing tennis
4. B. watching TV
5. C. windsurfing
6. C walking
2. Listen to the conversation. Write the missing words. (1 m)
1 2 3 4 5
outside 98 beach conditioner small
II. LANGUAGE FOCUS. (3 ms)
Choose the best options to complete the following sentences.
1. The teacher told me _________ the report card to my parents. C. to give
2. He has collect stamps ____ 2001. D.since
3. He felt hungry enough _________ all those cakes. C. to eat
4. We should keep all medicine out of children’s _________.B. reach
5.1 am pleased to hear that you had an _________ Christmas vacation. A. enjoyable
6. We used _________ in this river when we were young.B. to go
7. Minh and Nga cooked dinner _________. Their mother wasn’t at home last night.
C. themselves
8. The Y&Y ____ all members to participate in a recycling program, D.encouraged
9. The telephone _________ by Alexander Graham Bell. B. was invented
10. Sony. He is out at the moment. Would you like to _________ him a message?
B. leave
11. Little Pea ___the house work all day after her father got married again. C. had to do
12. I’m living on the third floor. Peter is living ________, on the second floor. A. downstairs
III. READING. (2 ms)
1. Complete the passage with words given in the box. (There are two words that you do not use). (1 m). Once upon a time, there (1) ______was____ a farmer who lives a comfortable life with his
family. He raised a lot of chickens. They laid many eggs which farmer (2) ____used________ to buy
food and clothing for the family. One day, he began to collect the eggs and discovered one of the chickens laid a gold egg. He shouted excitedly to his wife, “We’re rich! We’re rich!” His wife ran to him and they both looked at the egg in amazement. The wife (3) ___wanted_________ to get more, so her husband (4) __decided__________ to cut open all the chickens and find more gold eggs. Unfortunately, he (5) _____found_______ no more eggs. When he finished all the
chickens were dead. There were no more eggs of any kind for the foolish farmer and his greedy wife.

2. Read the passage, and then answer the questions. (1 m)
The Youth and Young Pioneers Organization (Y&Y) was founded in Viet Nam on March
26th 1931. It builds character, encourages good citizenship and personal fitness. The Y&Y has many plans to help the community. It encourages all members to take part in
different programs. The recycling program can help people save natural resources. The “Rosy Smile” program
helps raising funds for the poor children. The “Green Sunday” program makes the city more beautiful with clean streets, plenty of trees and flowers. It gives more green color to the city and it is done on Sunday so it has the nam "Green Sunday”. There are more helpful programs such as “Helping....
1.. When was the Y&Y founded?
..1. It was founded on March 26
th 1931. ; 2. What does the Y&Y do to help the community? .It has many plans to help the communication . 3. Does “Green Sunday” program help raising funds for the poo ... ' No, it doesn’t. '...... 4, The “Green Sunday” program (gives more green color to the city). 5. Yes, it is.
a. Susan learns English badly. b. He used to live on a farm in the countryside.. c.The teacher said Anna should improve her English grammar. d. Mom has worke

a. I haven’t met my grandma for years. b. We enjoy taking part in the Y&Y very much. c. The test is easy enough for me to do in 15 minutes. d. He writes the words in order to remember them longer.