问答题E.coli的染色体含有长度约为1100μm的DNA，问这条染色体有多少核苷酸对?

问答题草履虫的放毒型品系(KK+Kappa)与敏感型品系(kk)接合后，产生的F1是放毒型(Kk+Kappa)和敏感型(Kk)。预期在下述几种情况下的结果如何? (1)F1中的两个放毒型之间接合； (2)F1中的放毒型与敏感型接合； (3)F1中的放毒型与敏感型自体受精。

问答题简述原核生物和真核生物在染色体结构与DNA复制过程中的主要差异。

问答题什么是染色体断裂愈合模型和模写选择模型?

问答题试说明RFLP的基本原理，及其在现代遗传和人类疾病诊断过程中的应用。

问答题异配性别

问答题血友病由性连锁隐性基因控制，该基因在某些人群中的频率为1%，问：

问答题何谓反转录?在何种情况下细胞内会发生反转录反应?举一例说明反转录反应在分子生物学研究技术中的应用。

问答题repressor; supressor

问答题假定有两对基因，每对各有两个等位基因Aa、Bb，以相加效应的方式决定植株的高度，纯合子AABB高50cm，纯合子aabb高30cm，问： 1)这两个纯合子之间杂交，F1高度是多少? 2)在F1×F1杂交后，F2中什么样的基因型表现为40cm高度?

问答题人类中带有某种纯合的隐性常染色体基因的个体在生育前就会死去，尽管所有这种纯合体会死掉，但纯合子发生的频率逐代仍不会减少，问隐性基因固定的频率是怎样产生的?

问答题核小体包括什么?

问答题要识别刚孵出的小鸡的性别是很困难的，但是很容易区别它们的羽毛是芦花的还是非芦花的。设：(1)芦花基因为显性；(2)鸡的性别决定为ZW型。利用芦花能遗传而且是性连锁的特点，试提出一个能在孵化后立即鉴别出性别的实验方案。

问答题什么叫做反转录转座子?试举例说明。

问答题用T4噬菌体的两个品系感染E.coli细胞，一个品系是小噬菌斑(m)、快速溶菌(r)和噬菌斑浑浊(tu)突变型；另一个品系对这3个标记都是野生型(+++)。把上述感染的溶菌产物涂平板，资料如下：(1)测定m-r、r-tu和m-tu的连锁距离。(2)你认为这3个基因的连锁顺序如何?(3)这个杂交的并发系数是多少?它意味着什么?

问答题一对常染色体等位基因A和a的频率在雄性中分别用pm和qm表示，在雌性中分别用pf和qf表示，如果gf=0.6，qm=0.2

问答题leucine zipper; zinc finger

问答题简述遗传平衡定律的要点，并说明该定律的意义。

问答题There is a marked difference between the education which every one gets from living with others and the deliberate educating of the young. In the former case the education is incidental; it is natural and important, but it is not the express reason of the association. (46) It may be said that the measure of the worth of any social institution is its effect in enlarging and improving experience, but this effect is not a part of its original motive. Religious associations began, for example, in the desire to secure the favor of overruling powers and to ward off evil influences; family life in the desire to gratify appetites and secure family perpetuity; systematic labor, for the most part, because of enslavement to others, etc. (47) Only gradually was the by-product of the institution noted, and only more gradually still was this effect considered as a directive factor in the conduct of the institution. Even today, in our industrial life, apart from certain values of industriousness and thrift, the intellectual and emotional reaction of the forms of human association under which the world's work is carried on receives little attention as compared with physical output. But in dealing with the young, the fact of association itself as an immediate human fact, gains in importance. (48) While it is easy to ignore in our contact with them the effect of our acts upon their disposition, it is not se easy as in dealing with adults. The need of training is too evident and the pressure to accomplish a change in their attitude and habits is too urgent to leave these consequences wholly out of account. (49) Since our chief business with them is to enable them to share in a common life we cannot help considering whether or not we are forming the powers which will secure this ability. If humanity has made some headway in realizing that the ultimate value of every institution is its distinctively human effect we may well believe that this lesson has been learned largely through dealings with the young. (50) We are thus led to distinguish, within the broad educational process which we have been so far considering, a more formal kind of education—that of direct tuition or schooling. In undeveloped social groups, we find very little formal teaching and training. These groups mainly rely for instilling needed dispositions into the young upon the same sort of association which keeps adults loyal to their group.

问答题阐述自交繁殖的遗传效应及其在育种上的意义。