Linkage: Alleles of two genes segregate together during meiosis

第二节染色体的形态和数目 一、染色体的形态特征 二、染色体的数目

第四节遗传物质的改变—突变 一、染色体畸变:

一、遗传性状: 质量性状:表现型具有不连续的变异。 二、数量性状:表现型具有连续的变异

第二节基因突变与性状表现 一、显性突变和隐性突变的表现 二、大突变和微突变的表现

一、发现1906年 Bateson and annett 1研究香豌豆两对性状的 遗传时发现:

1纯系。 2性状由一对基因控制,完全显性。 3配子发育良好,无选择受精。 4所有配子的存活率相同。 5实验群体要大

一、有关名词概念 1 alleles 2 homozygote 3 heterozygote 4 true breeding

About the final It will be in English. Try to answer in English as well. The problems are given in such a way that very short answers are needed. Chinese allowed if you can only read English

F and partial diploids The F-factor in a Hfr chromosome can excise out to become an autonomously replicating plasmid If a segment of the chromosome becomes part of the F pp lasmid during excision, the new element is called an F plasmid