AaBbDdEe có 2n=2×4=8
Vì ở tế bào có 4 cặp là Aa; Bb; Dd và Ee
Tế bào AaBbDdEe
⇒Mỗi cặp gen nằm trên một cặp NST
⇒Có 4 cặp gen
⇒2n=8
Choose the best answer.
I think you should buy _____ pack of mineral water instead. And you can also buy _____ snacks such as potato crisps, 3 kilos of mandarins, 2 kilos of apples, 3 bunches of bananas, ______ cookies and soft candies.
We should decorate our living room with _____ orange banner. We also need ________ ribbons, balloons, party hats and costume.
I think that ______ cauliflower is not enough for 3 people. Let’s buy one more.