Why is homeostasis important for cells? Why does cell signaling exist in single-celled organisms? Why are animal cells more irregularly shaped than plant cells? Why do some cells have microvilli? Why do neurons die without oxygen? Why do erythrocytes lack a nucleus?
How do human epithelial cells and plant cells differ? How do endothelial cells get nourishment? How do you distinguish between epithelial cells and connective tissue? Where do all cells come from? How are plant meristem cells like stem cells?
Cytokinesis occurs inmitosis and meiosisfor both plant and animal cells. The ultimate objective is to divide the parent cell into daughter cells. In plants , this occurs when a cell wall forms in between the daughter cells. In animals , this occurs when a cleavage furrow forms. Does cytokines...
The re-replication of DNA without an intervening mitosis. This is often associated with cell differentiation. Endosperm The seed tissue that surrounds, protects and provides nutrients for the embryo. Gametophyte The multicellular haploid stage of the plant life cycle that produces the gametes. In flow...
Some ferns have a covering over the sporangia known as an indusium. When the spores are mature, they are released from the sporangia. If a spore lands on a suitable site,it will germinate and grow via mitosis into a mature gametophyte plant. A gametophyte is the plant that produces gamet...
—, 1979: Fine structure of mitosis and cleavage inFriedmannia israelensis (Chlorophyceae, Chlorosarcinaceae). — J. Phycol.15, 452–457. Google Scholar —, 1977: Fine structure ofNautococcus mammilatus, a coccoid alga with tomentose walls. — J. Phycol.13, 218–224. Google Scholar ...
5.5K In comparative genomics, the number of chromosomes is examined to see the genes that are passed down in different organisms. Learn about chromosome numbers and pairs, and understand how they explain hybrid species. Explore our homework questions and answers library ...
- 《Plant Molecular Biology》 被引量: 73发表: 2010年 The Florey Lecture, 1990: How is the Cell Division Cycle Regulated? It is argued in this lecture that in most eukaryotic cells onset of mitosis is coupled to attainment of a critical cell mass and to completion of the previous S-phase...
For example, “What do chloroplasts enable plant cells to do?” can be simply answered as “photosynthesis,” whereas behavior-2 questions were defined such that their answers always required inference. Fig. 4 Mean of depth for each type of annotations Full size image The analysis was repeated...
What are the stages of mitosis? What are the differences between plant and animal cells?Crossing over occurs during which phase of meiosis? (a) Interphase (b) Telophase I (c) Metphase II (d) Prophase I.During what stages of mitosis would one expect to find that each chromosome is ...