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Bài 6: Một con bò cái không sừng giao phối với bò đực có sừng, năm đầu đẻ được một bê có sừng, năm sau đẻ được một bê không sừng. Con bê không sừng nói trên lớn lên giao phối với một bò đực không sừng đẻ được một con bê có sừng. a. Xác định kiểu gen của mỗi cá thể nêu trên? b. Lập sơ đồ lai minh họa. Rõ ràng,chính xác,đc Ctlhn
Vẽ bé mầm cute nâng trái tim Ko vị phạm luật hoidap NL : Môn học mng yếu nhất là môn nào zợ .. ?
26.Study hard and you will pass the exam. (5 Điểm) If you study hard, you will pass the exam. If you study hard, you won’t pass the exam. If you don’t study hard, you will pass the exam. 27.Phong missed the bus. He was late for school. (5 Điểm) Phong missed the bus, but he was late for school. Because Phong missed the bus, he was late for school. Phong missed the bus, or he was late for school. 28.Read the passage carefully and choose the best answer. Vietnam’s New Year is celebrated according to the Lunar calendar. It is offically known as Tet Nguyen Dan, or Tet. It begins between January twenty-first and February nineteenth. The exact date changes from year to year.Vietnamese people usually make preparations for the holiday several weeks beforehand. They tidy their houses, cook special food, clean and make offeringson the family altars . On the New Year’s Eve, people sit up to midnight to seethe New Year in, then they put on new clothes and give one another the greetings of the season. Tet lasts ten days. The first three days are the most important. (5 Điểm) How long does Tet often last ? three days seven days ten days 29.They ________ aerobics in their free time. (2 Điểm) are doing play do 30.I_______this film twice. (2 Điểm) see saw have seen 31.No one in this class istaller than Richard. (5 Điểm) Richard is the tallest in this class. Richard is the most tall in this class. Richard is more tall than in this class. 32.Choose the underlined word or phrase (A, B, or C ) that needs correcting - Chọn phần gạch chân chứa lỗi sai (2 Điểm) She likes the (A) weather and (B) food in Italy but I didn’t (C). A B C 33.She______ a lot of new books. (2 Điểm) has just bought buy bought 34.Read the passage carefully and choose the best answer. Vietnam’s New Year is celebrated according to the Lunar calendar. It is offically known as Tet Nguyen Dan, or Tet. It begins between January twenty-first and February nineteenth. The exact date changes from year to year.Vietnamese people usually make preparations for the holiday several weeks beforehand. They tidy their houses, cook special food, clean and make offeringson the family altars . On the New Year’s Eve, people sit up to midnight to seethe New Year in, then they put on new clothes and give one another the greetings of the season. Tet lasts ten days. The first three days are the most important. (5 Điểm) Vietnamese people make preparations forTet ___________ beforehand. several days several weeks some months 35.Choose the underlined word or phrase (A, B, or C ) that needs correcting.- Chọn phần gạch chân chứa lỗi sai (2 Điểm) I didn’t met (A) Tom and Ann at (B) the airport a few weeks ago (C) A B C 36.We started workinghere three years ago. (5 Điểm) We worked here for three years. We have worked here for three years. We will work here in three years. 37.It’s…………. to go by bus than by car.Trình đọc Chân thực (2 Điểm) cheaper cheapest more cheap
Giải giúp ai giải trong 2 tiếng mà chữ đẹp thì sẽ có ctlhn
các bạn làm hộ mik câu 2,3,4 nhé
13.He is _______ student in my class. (2 Điểm) most hard-working more hard-working the most hard-working 14.He______ a cup of coffee every morning. (2 Điểm) drinks drank is drinking 15.I’d like to see that Korean band ______ their music is pretty cool. (2 Điểm) although so because 16.Jupiter is ………....... planet in the solar system. (2 Điểm) the biggest the bigger biggest 17.She drives ………..…. her brother. (2 Điểm) carefuler than more carefully more carefully than 18. a clock in your room? (2 Điểm) Are there Is there Have there 19.Choose the underlined word or phrase (A, B, or C ) that needs correcting. - Chọn phần gạch chân chứa lỗi sai (2 Điểm) George has left (A) school three years (B) ago (C) A B C 20.The war _____ out three years ago. (2 Điểm) broke broken has broken 21.______does Jane have science? ~ On Monday and Friday. (2 Điểm) Where What When 22. Read the passage carefully and choose the best answer. Vietnam’s New Year is celebrated according to the Lunar calendar. It is offically known as Tet Nguyen Dan, or Tet. It begins between January twenty-first and February nineteenth. The exact date changes from year to year.Vietnamese people usually make preparations for the holiday several weeks beforehand. They tidy their houses, cook special food, clean and make offeringson the family altars . On the New Year’s Eve, people sit up to midnight to see the New Year in, then they put on new clothes and give one another the greetings of the season. Tet lasts ten days. The first three days are the most important. (5 Điểm) Whatdo Vietnamese do on New year’s Eve? sit up to midnight sit down to midnight sleep to midnight 23.My brothers ……………….. on the floor. (2 Điểm) often sleeps often sleep sleep often 24.Choose the underlined word or phrase (A, B, or C ) that needs correcting. - Chọn phần gạch chân chứa lỗi sai (2 Điểm) The (A) Mekong is one of (B) the longer (C) rivers in theworld. A B C 25.I want to buy a new jacket, _______ I don’t have enough money.Trình đọc Chân thực (2 Điểm) and so but
13.Một gen có chiều dài 3570Å và số tỉ lệ A+T/G+X = 0,5. Số nuclêôtit mỗi loại của gen là: A. A = T = 250; G = X = 500. B. A = T = 1000; G = X = 500. C. A = T = 500; G = X = 250. D. A = T = 350; G = X = 700. 14.Một gen có tổng số 2100 nucleotit và số nucleotit loại A chiếm 20% tổng số nucleotit của gen. Gen nhân đôi 3 lần. Số nucleotit loại G mà môi trường cung cấp là bao nhiêu? A. 4410. B. 630. C. 2940. D. 420. 15.Một gen có tổng số 1288 liên kết hiđrô. Trên mạch một của gen có số nuclêôtit loại T = 1,5 A; có G = A + T; có X = T – A. Số nuclêôtit mỗi loại trên mạch 1 của gen là A. 92A; 138T; 230G; 46X. B. 138A; 92T; 46G; 230X. C. A = T = 230; G = X = 276. D. 70A; 105T; 175G; 35A. 16.Một phân tử ADN mạch kép nhân đôi một số lần liên tiếp đã tạo ra được 62 mạch pôlinucleotit mới. Có bao nhiêu phát biểu sau đây đúng? I. Tất cả các mạch đơn nói trên có trình tự bổ sung với nhau từng đôi một. II. Trong các phân tử ADN con được tạo ra, có 31 phân tử cấu tạo hoàn toàn từ nguyên liệu của môi trường nội bào. III. Phân tử ADN nói trên đã nhân đôi 5 lần liên tiếp IV. Trong các phân tử ADN con được tạo ra, có 30 phân tử cấu tạo hoàn toàn từ nguyên liệu của môi trường nội bào. A. 1 B. 3 C. 2 D. 4 17.Một phân tử ADN mạch kép có số nucleotit loại X chiếm 20% và trên mạch 1 của ADN có A = G = 15% tổng số nucleotit của mạch. Tỉ lệ các loại nucleotit A:T:G:X trên mạch 1 của ADN là A. 3:9:3:5. B. 14:5:1:5. C. 5:1:5:14. D. 1:5:5:14.
trình bày suy nghĩ của em về tinh thần đoàn kết của nd ta trong thời kỳ covid-19 hiện nay Giúp minh với :((
Mọi người giúp mik vs ak mik cảm ơn trc ạ! *tìm 5 từ ngữ địa phương *tìm 5 từ biệt ngữ xã hội * tìm 5 từ ngữ nghĩa rộng *tìm 5 từ ngữ nghĩa hẹp Mik cảm ơn! Ạ
3.Please turn the lights.The room is so dark. (2 Điểm) in on off 4.Peter,please help me do the washing up. – Sorry, Mum. I ______ TV at the moment . (2 Điểm) watches am watching watched 5.You can read Harry Potter. You can watch it on TV. (5 Điểm) You can read Harry Potter, but you can watch it on TV. You can read Harry Potter or you can watch it on TV. You can read Harry Potter, so you can watch it on TV. 6.My Anh is a ________ girl. She always makes noise in class. (2 Điểm) quiet talkative creative 7.Read the passage carefully and choose the best answer. Vietnam’s New Year is celebrated according to the Lunar calendar. It is offically known as Tet Nguyen Dan, or Tet. It begins between January twenty-first and February nineteenth. The exact date changes from year to year.Vietnamese people usually make preparations for the holiday several weeks beforehand. They tidy their houses, cook special food, clean and make offeringson the family altars . On the New Year’s Eve, people sit up to midnight to seethe New Year in, then they put on new clothes and give one another the greetings of the season. Tet lasts ten days. The first three days are the most important. (5 Điểm) What is the man topic of the passage? Vietnam’s New Year New Year’s Eve Lunar calendar 8.How money do you want? (2 Điểm) many much little 9.The farmers _____ in the field now. (2 Điểm) are working have worked worked 10.My aunt has lived in Australia ………………… 15 years (2 Điểm) for since in 11.Choose the underlined word or phrase (A, B, or C ) that needs correcting. - Chọn phần gạch chân chứa lỗi sai (2 Điểm) She is (A) more intelligenter (B) than (C) her brother. A B C 12.Read the passage carefully and choose the best answer. Vietnam’s New Year is celebrated according to the Lunar calendar. It is offically known as Tet Nguyen Dan, or Tet. It begins between January twenty-first and February nineteenth. The exact date changes from year to year.Vietnamese people usually make preparations for the holiday several weeks beforehand. They tidy their houses, cook special food, clean and make offeringson the family altars . On the New Year’s Eve, people sit up to midnight to seethe New Year in, then they put on new clothes and give one another the greetings of the season. Tet lasts ten days. The first three days are the most important. Trình đọc Chân thực (5 Điểm) Tet usually occurs in ________ late February or early January in early January or late February late January or early February
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