site stats

Generative cell was destroyed by laser

WebJan 1, 2008 · The generative cell divides and produces the two sperm cells, transported to the female gametes by the pollen tube produced by the vegetative cell. ... GFP was examined using the 488 nm excitation line of an argon laser and an emission filter long pass of 510 nm. Fluorescence of mRFP1 was examined using the 543 nm excitation line of a …

Generative cell was destroyed by laser but a normal pollen tube was

WebGerm cell degeneration is common during testicular development and in adults and is a major factor in determining the efficiency of spermatogenesis in terms of the theoretic … WebApr 9, 2024 · In other plants, pollen tube germination is arrested after growing one-third the length of the style, leading to pollen tube death. Pollen tube death is due either to apoptosis (programmed cell death) or to degradation of pollen tube RNA. The degradation results from the activity of a ribonuclease encoded by the S locus. buckethead pikes torrent https://sanda-smartpower.com

Chapter 30 Flashcards Quizlet

WebGenerative cell was destroyed by laser but a normal pollen tube was still formed because(a) vegetative cell is not damaged(b) contents of killed generative c... WebJun 17, 2024 · The generative cell divides to produce two sperm by mitosis. Figure 24.4. 1: Angiosperm pollen In the image above, you can see three pollen grains. In two of them, you can see the generative cell and the tube cell nucleus. Observe a prepared slide of a Lilium ovary cross section (pre-fertilization). A Lilium pistil consists of three fused carpels. WebGenerative cell was destroyed by laser but a normal pollen tube was still formed because A. vegetative cell is not damaged B. contents of killed generative cell stimulate pollen … exterior painting phoenix

Generative cell was destroyed by laser but a normal …

Category:32.2: Pollination and Fertilization - Biology LibreTexts

Tags:Generative cell was destroyed by laser

Generative cell was destroyed by laser

Generative cell was destroyed by laser but a normal pollen tube …

WebMay 25, 2024 · Correct Answer: A Suggest Corrections Detailed Solution Generative cell was destroyed by laser but a normal pollen tube was still formed because vegetative … WebEven after killing the generative cell with a laser beam, the pollen grain of a flowering plant germinates and produces normal pollen tube because A. Laser beam stimulates pollen germination and pollen tube growth B. C. D. The vegetative cell has not been damaged class-12 sexual-reproductio-in-flowering-plants Share It On FacebookTwitterEmail

Generative cell was destroyed by laser

Did you know?

WebSolutions ( 1) (a) : Generative cell was destroyed by laser but a normal pollen tube was still formed because vegetative cell is not damaged. Each microspore divide by mitotic division making a smaller generative cell and a larger vegetative cell or tube cell. WebGenerative cell was destroyed by laser, but normal pollentube was still formed because. A. Laser beam stimulates growth of pollen tube. B. Vegetative cell is not damaged. C. …

WebGenerative cell was destroyed by laser, but a normal pollen tube was still formed because vegetative cell is not damaged. If generative cell is damaged then the normal pollen tube will be formed because pollen tube is formed by … WebGenerative cells are mainly involved in serving as reproductive cells of the pollen grains. Hence, after pollination, they develop two sperm cells in the angiosperms, of which one sperm cell unites with the egg leading to the formation of …

WebA gene gun is used for delivery of exogenous DNA to cells. This method is known as 'biolistics'. Gene guns can be used effectively on most cells but are mainly used on plant … WebThey have conducting cells instead of tracheids. E. They have no H2O transport mechanisms. C. Grow to very large sizes. The development of tracheids helped land plants to do what? A. Resist desiccation. B. Protect the genome from UV exposure. C. Grow to very large sizes. D. Absorb H2O from stems and leaves.

WebMay 4, 2024 · The generative cell is contained within the larger pollen tube cell. When a pollen grain reaches the stigma, it germinates into a pollen tube. The generative cell migrates with the pollen tube to enter the ovary. During its transit inside the pollen tube, the generative cell divides to form two gametes (spermatia).

Webgenerative cell was destroyed by laser but a normal pollen tube was still formed because ??a. vegetative cell is not damaged b. content of killed generative cell stimulate pollen … exterior painting price per sq ftWebGenerative cell was destroyed by laser but a normal pollen tube was still formed because vegetative cell is not damaged. Concept: Parts of Flower - Essential Parts of Flower: Androecium Report Error Is there an error in this question or solution? Video Tutorials VIEW ALL [3] view Video Tutorials For All Subjects exterior painting photosWebThe generative cell produces two sperm cells. While the vegetative cell produces the pollen tube. That helps to deliver the male gametes to the embryo sac. However if a laser beam kills the generative cell, it will be ineffective on the normal pollen tube formation. Thus, the correct answer is option D. Was this answer helpful? 0 0 buckethead pikes tourWebVerified answer. biology. Movement of glucose from one side to the other side of the intestinal epithelium is a major example of transcellular transport. How does the \mathrm {Na}^ {+} / \mathrm {K}^ {+} Na+/K+ ATPase power the process? exterior painting per square foot priceWebThe generative cell may divide to form two sperm cells before the pollen grain (developing male gametophyte) is shed or while the pollen tube is growing during germination. The pollen grains of angiosperms have variously, and often elaborately, ornamented walls characteristic of the… seeds In seed: Angiosperm seeds buckethead pirate’s life for meWebThe generative cell is destroyed by laser but a normal pollen tube is still formed because 10 14 NTA Abhyas NTA Abhyas 2024 Report Error A the region of emergence of pollen … exterior painting new yorkWebJul 4, 2024 · The generative cell of a pollen grain was destroyed by laser but a normal pollen tube was still formed because. A. vegetative cell is not damaged. B. contents of … exterior painting quote template