A:指导蛋白质合成的基因的碱基有A,T,C,G,U
B:基因可通过控制蛋白质的结构直接控制生物体的性状
C:肝细胞与皮肤细胞的核DNA相同,蛋白质及RNA完全不同
D:胰岛细胞的核DNA分子数比汗腺细胞多,因而蛋白质合成旺盛
生物圈中的动物必须直接或间接地以消耗____合成的____来维持生活,所以,动物是生物圈中的消费者.
读世界地图,回答问题。
There are many famous museums in the world.The Louvre Museum is in Paris.It is a great art museum.The Palace Museum is well—known.And the British Museum,the Metropolitan Museum of Art are loved by people.People want to see all the beautiful things there.
· China ·British ·USA ·France