基因、遗传信息和密码子分别是指( )
①信使RNA上核苷酸的排列顺序 ②基因中脱氧核苷酸的排列顺序
③DNA上决定氨基酸的三个相邻的碱基 ④信使RNA上决定氨基酸的3个相邻的碱基
⑤转运RNA上一端的3个碱基 ⑥有遗传效应的DNA片段.
A:⑤①③
B:⑥②④
C:⑤①②
D:⑥③④
It's Sunday today. My parents and I go to a small restaurant for dinner. The waiter shows us the menu.
MENU
Food
Ingredients (配料)
Price
Special 1
onions, mushrooms (蘑菇),beef
$ 3.75
Special 2
pepperoni (意大利辣香肠), carrots, mutton
$ 3.5
Special 3
mushrooms, eggs, onions
$ 3.6
Hamburger
chicken, lettuce (生菜)
$ 2.8
Green tea
$ 2
Ice cream
$ 1
Apple juice
My father would like Special 1 and a glass of green tea. My mother orders Special 2. And she'd like a glass of apple juice. I want to eat a hamburger. And I'd like an ice cream.
下列说法正确的是( )