各位好 請問一下減分I前期核膜分裂 核仁分散的這個敘述 就我所知核仁是間期染色體複製時顏色較深的部分 不知道為什麼在細胞分裂期還會看到核仁 也不懂dispersal nucleoli 的意思 麻煩各位 謝謝！

METAPHASE I PROPHASE I Centromere (with kinetochore) Sister chromatids Chiasmata Metaphase plate Spindle ear Hope Tetrad Microtubule attached to kinetochore Homologous chromosomes separate Tetrads line up Homologous chromosomes (red and blue) pair and exchange segments; 2n = 6 in this example In crossing over, the DNA molecules in nonsister chro- matids break at correspon- Hing places and then rejoin the other's DNA. synapsis, a protein struc- re called the synaptonemal mplex forms between homologues together until anaphase I. ► The movement of centrosomes, formation of spindle microtubules, breakdown of the nuclear envelope, and dispersal of nucleoli occur as in mitosis.

各位好 這個是meiosis I telophase I 的圖和解釋 想請問這邊為什麽是two haploid cells 而不是two diploid cells 我能理解這邊是同源染色體分離 細胞內是基因型相同的姐妹染色分體 但覺得跟減數分裂2n, 4n, 2n, n的... 繼續閱讀

TELOPHASE I AND CYTOKINESIS PR Cleava furrow Two haploid cells form; chromosomes are still double Telophase I and Cytokinesis At the beginning of telophase I, each half of the cell has a complete haploid set of chromosomes, but each chromosome is still composed of two sister chromatids.

請問要怎麼解這題？

49ylf a cell is able to synthesize 30 ATP molecules for each molecule of glucose completely oxidized by carbon dioxide and water, how many ATP-molecules can the cell synthesize for each molecule of pyruvate oxidized to carbon dioxide and water? AO C C) 12. D) 14 E) 15 Topic: Concept 9.4 Skill: Application/Analysis elgono holanaderamo Claphor

想請問E是錯在哪裡？ 中節是只發生於mitotic phase（DNA濃縮且複製完畢時）嗎？還是當DNA在S phase 複製時就有了？ 如果是發生於mitotic phase ，又此時期很短，所以一般我們看到的都是細胞處於interphase

D 5) Suppose a biologist can separate one of a dozen pieces of chromatin from a eukaryotic (animal) nucleus. It might consist of which of the following? woon A) one-twelfth of the genes of the organism B) two chromosomes, each with six chromatids C) a single circular piece of DNA LD) two long strands of DNA plus proteins erns that we tot protein E) two chromatids attached together at a centromere 付 也

求解10xBSA怎麼解？

Exercise 1 • A5 kb plasmid DNA has two Bam HI sites. You would like to use this enzyme to digest 5ug of this DNA. How would you do? (DNA concentration: 2 mg/ml) Bam HI concentration: 20000 U/ml Unit definition of Bam HI: 1 unit enzyme can completely digest 1 ug of lambda DNA at 37 °C in 1 hour. (lambda DNA has 48500 bp and 5 Bam HI sites) The reaction needs supplement with 100 ug/ml bovine serum albumin (BSA, 10x concentration) • Calculate the volume of all ingredients and setup the reaction table.

30🙏🙏🙏

€ 行 30 Electrons farther out from the nucleus A) are at a higher energy level than those that are closer to the nucleus B) absorb energy as they move closer to the nucleus C) are at a lower energy level than those that are closer to the nucleus D) both b and c

4.求解🙏🙏🙏

The dark reaction in photosynthesis is limited by A) CO2, temperature, and light B) CO2, light, and water C) water, temperature, and CO2 D) oxygen, water, and temperature Biborot

求解，可以教我怎麼算嗎😭

2 Two individuals, 4.455Cc2D2D5e and qqgppccddee, are mated (配對) to produce anFl that is self-fertilized io Produce F2. Ifthe capitalletters (大寫) represent dominant, and all five loci are independently assorting alleles: 人 1) How many different genotypes will oceur in the F2? 2) What proportion (比例) ofthe F2 genotypes will be recessive for all five loei (基因座)? 語玉2

請問句末的reservoir effect是儲庫效應嗎？（Fig1） 是的話，請幫我繼續解答🙏 有一個含萃取物凝膠，塗抹在皮膚上，滲透係數Kp 較低，但是滯留時間Lag time很長，所以文章解釋為reservoir effect儲庫效應，我看了一下參考文獻(fig2)，但... 繼續閱讀

The HPLC analysis ofthe last samples colleceted in the permeation assays allowed to caleulate the percentage ofbioactive compounds that permeated through the biologieal barrier after 24 hours as well as their permeation fluxes, expressed as hg em? hi (Table 3). Asp-eoumarie acid and caffeic acid are slightly lipophilic, iis possible that, even 放 they did not manage to pass the s/rgjo corjezo, they were trapped in the human membrane, happening whatitis called “Teservoir effee 六

請問病毒moi如何計算呀，拜託了 moi=1 moi=10 moi=100