* Dạng 1 : Tìm số loại giao tử và kiểu gen của giao tử : Bài 1 : Hãy tìm số loại giao tử và kiểu gen giao tử của các cơ thể có kiểu gen sau : A. Aa B. Aabb C. AaBb D. AA E. aaBb F. AaBbdd * Dạng 2 : Lai một cặp tính trạng : - Cho hai giống cà chua quả đỏ thuần chủng và quả vàng thuần chủng lai với nhau được F1 toàn quả đỏ. Khi cho lai các cây F1với nhau thì tỉ lệ về kiểu hình ở F2 sẽ như thế nào ? Cho biết tính trạng màu quả do nhân tố di truyền quy định.

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IV. Choose and circle the best answer. 1. These pens are mine. They are not ……………. A. she B. her C. hers D. hers pens 2. ………….is limited and harmful to the environment. A. Coal B. Solar C. Wind D. Hydro 3. At 8.00 o’clock tomorrow, we …………………….English. A. learn B. will learning C. will be learnt D. will be learning 4. Wind, hydro and solar are ………………. energy sources. A. modern B. renewable C. non-renewable D. new 5. …………..were you born? – In March. A. How B. Why C. Where D. When V. Choose the word which has different stress from the others 1. A. harvest B. parade C. music D. village 2. A. amazing B. festival C. begin D. arrive 3. A. famous B. joyful C. usual D. alone 4. A. bamboo B. invite C. tourist D. prepare 5. A. answer B. happen C. between D. often VI. Make the questions for the underlined parts in the following sentences 1. Most of my classmates go to school by bike. …………………………………………………………………………………………… 2. It is about three kilometres from my house to school. …………………………………………………………………………………………… 3. The students are playing football in the school yard. …………………………………………………………………………………………… 4. There are often traffic jams in the city centre in rush hour …………………………………………………………………………………………… 5. My father used to go fishing in the pond behind my house. …………………………………………………………………………………………… VII. Use the correct form of the words in brackets 1. We used to (cycle) ……………………………..to school two years ago. Now we walk 2. Nuclear power (replace)……… ……………………..in the future. 3. In spite of (be) …………………………..ill, he goes to school today 4. At this time tomorrow, my classmate (show)……………………….……… a film on types of renewable energy sources. 5. We liked the (perform) ………………………………of that young pianist. 6. Christmas is a popular (festival)……… ……………………..in many countries and people (celebration) ……………………………………….it in different ways. 7. I have seen a lot of (parade) …………………………………in my life 8. My father drives his motorbike (care)……………………………..so he never has accident. 9. What I like about festivals is that they show the (culture)…………………values of different communities.