1/ Một hợp tử ở người ( 2n = 46) nguyên phân liên tiếp một số lần đã tạo ra các tế bào con với tổng số 368 NST ở trạng thái chưa nhân đôi, không xảy ra đột biến. Số lần nguyên phân của hợp tử và số tế bào con được tạo ra ở lần nguyên phân cuối cùng lần lượt là p/s: câu này cho mình công thức và cách giải 2/ Điều gì sẽ xảy ra nếu ở kì giữa của lần nguyên phân đầu tiên ở 1 tế bào sinh dưỡng, thoi phân bào bị phá hủy? A. Quá trình nguyên phân bị dừng lại B. Tạo ra 2 tế bào con có bộ NST (2n) C. Tạo ra loại tế bào có bộ NST (4n) D. Tạo ra 2 tế bào con có bộ NST (n)

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Part I: Using the Colon Directions: Given below are sentences that require colons. Use the colon to correctly complete each sentence. Example: My mom said to her son “get home from school on time.” Answer: My mom said to her son: “get home from school on time.” 1. The man said it best “We are not afraid!” ______________________________________________________________________ 2. My dad hinted where the Easter egg was under the bushes. ______________________________________________________________________ 3. There was one thing left to do arrive with excitement. ______________________________________________________________________ 4. John spoke at the ceremony gallantly “We are all happy to be here.” ______________________________________________________________________ Part II: Listing with Colon Directions: Given below are sentences that require colons. Use the colon to correctly complete each sentence. 1. The bookstore specializes in three subjects art, architecture, and graphic design. ______________________________________________________________________ 2. David has the ingredients sugar, water, milk, and potatoes. ______________________________________________________________________ 3. I woke up at seven thirty a.m. in the morning. ______________________________________________________________________ 4. The school play includes five dances rumba, salsa, and samba. ______________________________________________________________________ Part III: Colons Introduce Quotation Directions: Re-Write each given sentence. Add a colon where necessary that indicates a quotation. Some sentences do not need a colon. Example: My mom said to her son: “get home from school on time.” 1. My dad told my brother “get your homework done.” ______________________________________________________________________ 2. Larry said to Sam “thanks for coming to dinner.” ______________________________________________________________________ 3. The woman spoke to the crowd “Everyone is equal” ______________________________________________________________________ 4. “What way are you going?” asked my friend. ______________________________________________________________________ Part IV: Writing Sentences with Colons Directions: Re-Write each given sentence. Add a colon where necessary that begins the explanation. 1. I went to the mall it was busy and filled with people. ______________________________________________________________________ ______________________________________________________________________ 2. The teacher gave out the directions no talking and listen quietly. ____________________________________________________________________________________________________________________________________________ 3. I brought my sports equipment to the gym a basketball shorts and water. ____________________________________________________________________________________________________________________________________________ 4. The food arrived at the table it was delicious and smelled good. ____________________________________________________________________________________________________________________________________________