Section I Listening Comprehension Directions This Section is designed to test your ability to understand spoken English you will hear a selection of recorded materials and you must answer the questions that accompany them. There are three parts in this section, Part A Part B and Part C

Section I Use of English Directions: Read the following text. Choose the best word(s)for each numbered blank and mark A, B, C or D on ANS WER SHEET 1. (10 points) Research on animal intelligence always makes me wonder just how smart humans are. 1 the fruit-fly experiments described in Carl Zimmer's piece

Section I Use of English Directions: Read the following text. Choose the best word(s)for each numbered blank and mark [a],, [C] or [D] on ANSwER SHEET 1.(10 points) By 1830 the former Spanish and Portuguese colonies had become independent nations. The roughly 20 million of these nations looked to

Section I Use of English Directions: Read the following text. Choose the best word(s)for each numbered blank and mark [a],, [C] or [D] on ANSwER SHEET 1(10 points) The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, this is largely because

Section I Listening Comprehension Directions: This section is designed to test your ability to understand spoken English you will hear selection of recorded materials and you must answer the questions that accompany them. There are three parts in this section

一、今年是DNA双螺旋模型发表五十周年。请回答以下问题(20分): 1、在双链DNA分子中A+T+C是否等于A+CG+T?(4分) 2、DNA双链的两条链中是否含有相同的遗传信息?为什么?(4分)

一、选答题:请在第1与第2题间选答一题若两题均答,只按其中得分最低的一题记入总 分(每题20分) 1.列举动物遗传研究中常见的两种模式实验动物,它们各有哪些特点?对遗传学的发展有哪些主要贡献?

一、试述有丝分裂和减数分裂对于保持物种稳定以及遗传多样性的意义。 二、基因组学研究是近年来生命科学领域的热点之一。简述结构基因组学与功能基因组学的概念,以及利用模式物种进行基因组学研究的意义

1,从蛋白质分子结构和基因表达两个层次解释温度敏感突变型的分子基础

一:一个学生得到30个转基因株系,其中29个都和预测相符合,只有一个株系比较特殊, 经过2代自交,都无法得到转基因纯合体,已知所得株系为杂合体,其自交只能得到杂合体 和野生型,且比例大致为2:1 请解释原因,并用遗传学的方法验证