2022知到答案 Food Molecular Biology 最新完整智慧树知到满分章节测试答案

第一章 单元测试

1、 问题:The template strand has a sequence complementary to that of the RNA transcript.（ ）
选项：
A:对
B:错
答案: 【
对
】

2、 问题:The coding strand has the same sequence as that of the RNA transcript.（ ）
选项：
A:对
B:错
答案: 【
错
】

3、 问题:Chromosome contains a linear array of genes and each gene resides at a particular location on the chromosome.（ ）
选项：
A:对
B:错
答案: 【
对
】

4、 问题:Transposable elements (TEs), also known as "jumping genes," are DNA sequences that move from one location on the genome to another location.（ ）
选项：
A:对
B:错
答案: 【
对
】

5、 问题:DNA polymerase are essential for DNA replication and usually work in pairs to create two identical DNA strands from a single original DNA molecule.（ ）
选项：
A:对
B:错
答案: 【
对
】

第二章 单元测试

1、 问题:DNA sequences that are highly enriched in G–C base pairs typically have high melting temperatures. Therefore, PCR amplification is greatly hindered by the presence of G–C-rich regions within the template.（ ）
选项：
A:对
B:错
答案: 【
对
】

2、 问题:The lacZ gene can be used to screen bacteria containing recombinant plasmids. A special plasmid carries a copy of the lacZ gene and an ampicillin-resistance gene.（ ）
选项：
A:对
B:错
答案: 【
对
】

3、 问题:We use Lipid mediated gene delivery as example. It uses lipids to cause a cell to absorb exogenous DNA since they are both made of a phospholipid bilayer.（ ）
选项：
A:对
B:错
答案: 【
对
】

4、 问题:When you doing transgenic plant, you could do overexpression, gene knock-down or gene knock out. Overexpression usually refers to an experiment when DNA is added to the cell to force expression of the gene to a much higher than normal level.（ ）
选项：
A:对
B:错
答案: 【
对
】

5、 问题:The technique we use for gene knock down is small interfering RNA (siRNA). Sometimes we call short interfering RNA or silencing RNA, it is a class of single-stranded RNA non-coding RNA molecules, 20-25 base pairs in length, and operating within the RNA interference (RNAi) pathway.（ ）
选项：
A:对
B:错
答案: 【
错
】

第三章 单元测试

1、 问题:In the process of electrophoresis, the protein with the smallest molecular weight moves the slowest.（ ）
选项：
A:对
B:错
答案: 【
错
】