What is the nucleus in eukaryotes for? Telomere shortening and cellular senescenceNo abstract is available for this article.doi:10.1016/S0248-4900(00)88210-6Alexey M OlovnikovJohn Wiley & Sons, Ltd.Biology of the Cell
“Cellular activity” is a rather vague term, however, and considering that a nucleus is the “brain” of a cell, that activity deserves some explication. Similar to human beings and their brains, without a nucleus, a cell would be unable to function and would immediately perish. That being...
And we could see that they didn’t have what we call a nucleus. 我们可以看到它们并没有细胞核。 So they got their own kingdom, a kingdom of very tiny things without nucleoli. 所以它们要独立出自己的界,一个没有核仁的非常小的生物的界。 So then we had several kingdoms for plants and for...
To determine the ploidy of the primary endosperm nucleus (PEN) in angiosperms, we can follow these steps:1. Understanding the Endosperm Formation: - The primary endosperm nucleus is formed during the fertilization process i
三、语法填空主题语境 主题群 体裁 难度 词数 建议用时 评 价人与社会 科学与技术 说明文 ☆☆☆ 166 8分钟 _/10KEY→P2What is clone? The noun "clone" and the verb"to clone" are not used consistently. In biology a clone is a cell or an organism, which is 1 (genetic) the same as a...
What is plant cell biology? In a plant cell, what is the function of the cell membrane? What does the cell membrane keep out? What does a cell membrane do? What organelle is known as the powerhouse of the cell? What is the cell's transport system to the nucleus? What are the parts...
The nucleus in a cell is the membrane-bound organelle that contains the DNA for the cell. All eukaryotic cells have a nucleus, while the other cell...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
What does nucleus mean cell? In cell biology, the nucleus is the large, membrane-bounded organelle that contains the genetic material in the form of multiple linear DNA molecules organized into structures called chromosomes. In cell biology, the nucleus function is to act asthe control center of...
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A nucleon is a collective term for protons and neutrons inside an atomic nucleus, while the nucleus is the core of an atom, containing nucleons and thus most of the atom's mass.