... x aabbcc - P: AaBbcc x aabbCc 1 đ - P: AabbCc x aaBbcc - P: aaBbCc x Aabbcc Câu4: 1 bệnh nhân mang hội chứng đao: - Tế bào sinh dục sơ khai của bệnh nhân có 47 NST (0,5đ) - Bệnh nhân này thuộc ... dị bội 2n+1=47 trong đó cặp NST số 21 có 3 chiếc .(1đ) b. Bề ngoài có thể nhận biết bệnh nhân mang hội chứng đao qua những đặc điểm : Bé, lùn, cổ rụt, má phệ, miệng hơi há, lỡi hơi thè, mắt hơi ......
... giữa uuur AN và uuuur BD' . Ta có : − + + ϕ = = = = ⇒ ϕ = = = = uuur uuuur uuuur uuuur uuur uuuur uuur 2 a 2 2 a a 2 AN. BD' 1 3 3 cos arccos 3a 9 9 3 3 AN . BD' .a 3 2 2 a [AN, BD'] ... − = − − uuur uuuur a a AN (a; ; a) (2;1; 2) 2 2 BD' ( a;a; a) a(1; 1;1) Mặt phẳng (P) đi qua M và song song với AN và BD’ nên có VTPT là = = − uuur uuuur r 2 a n [AN, BD&apos...
... Complete the postcard from the following set of words or phrase. You can make all the necessary changes and additions. (3ms) Dear Mom and Dad, 1/ I/ have / wonderful time/ Sydney. ________________________________________________________________________ ... quiet and life here is slow and easy. You never have to queue in shops or stores. People never throw their rubbish in the streets, so th...
... Complete the postcard from the following set of words or phrase. You can make all the necessary changes and additions. (3ms) Dear Mom and Dad, 1/ I/ have / wonderful time/ Sydney. ________________________________________________________________________ ... quiet and life here is slow and easy. You never have to queue in shops or stores. People never throw their rubbish in the streets, so th...
... Complete the postcard from the following set of words or phrase. You can make all the necessary changes and additions. (3ms) Dear Mom and Dad, 1/ I/ have / wonderful time/ Sydney. ________________________________________________________________________ ... quiet and life here is slow and easy. You never have to queue in shops or stores. People never throw their rubbish in the streets, so th...
... Read the passage and answer the questions ( 2pts ) Dear Laura I am writing to tell you about my family. There are 4 people in my family: my grandmother, my parents and me. My grandmother is 80 ... phone card, Ba ?………… Ba : I usually phone my grandparents (6) Da Nang.……… (7) ..is it to mail a letter to the USA, Liz ?…………… Liz: It (8) about ten thousand dong.………… Ba : OK. Here is the post offic...