C的duplicate gene也是无中生有，E说Multiple effects就错了，应该是specific，
same complement of genes. How then can these cells differentiate and form. structures as different as roots, stems, leaves, and fruits? The answer is that only a (5) small subset of the genes in a particular kind of cell are expressed, or turned on, at a given time. This is accom-...
aIn plant cells, pectin consists of a complex set of polysaccharides that are present in most primary cell walls and particularly abundant in the non-woody parts of nearly all terrestrial plants. 在植物细胞,果胶包括在几乎所有地球植物的non-woody部分上是存在多数主要细胞壁和特别丰富的复杂套多聚糖。
阅读表达 All plant cells(细胞)are capable of taking up water.Even dead ones do to a certain degree.Absorption(吸收)of water by dead cell walls makes wood become larger.In common land plants the living cells of roo
The cell is an organism, all animal and plant by cell development from and composed by cells and cell products. 翻译结果2复制译文编辑译文朗读译文返回顶部 正在翻译,请等待... 翻译结果3复制译文编辑译文朗读译文返回顶部 Cells are an organism, cell development and all the flora and fauna, and is...
Changes in temperature present the cells of plants with particular challenges. Fortunately, many changes in temperature can be anticipated due to the rhythms of day/night and the seasons. To anticipate changes in the environment most organisms have a circadian clock to optimize daily and seasonal ti...
Organelles are the structures in cells that carry out specific roles and functions for cells similar to organs within an organism. Organelles include mitochondria, vacuoles, Golgi apparatus, etc. Answer and Explanation: All of the following are found in all cells: a. DNA - DNA ...
What cell parts are found only in plant cells? What are the modern tenets of cell theory? Where does cell growth occur? Where is the cell membrane located in a plant cell? Where are the oxyphil cells located? Where are acinar cells found?
All plant cells are able to take up water. Even dead ones do to a certain degree. Absorption of water by dead cell walls makes wood swell(肿胀). In common land plants the living cells of roots take up most of the water. Land plants without roots do exist however. Those greenish-yellow...
Using a novel rat 10E5 mAb, we find that -40% of CD4~+T cells purified from the spleen of C57BL/6 express CD226. Upon activation, CD226 is up-r... X Zhang,PJ Lee - 《Journal of Immunology》 被引量: 4发表: 2006年 × the effect of pre-procedure sublingual nitroglycerin on radial...