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- Give typing answer with explanation and conclusion to all parts The pharmaceutical (−)-trans-Δ9-tetrahydrocannabinol (THC) is a metabolite that is biosynthesized specifically the glandular trichome cells of the plant species Cannabis sativa. The gene that catalyzes that last step in THC biosynthesis, namely THC ACID SYNTHASE (THCAS), is expressed exclusively in the glandular trichome cells of the plant and no other cell types. Given that all cell types arise from stem cells that have identical DNA, explain how glandular trichome cells develop unique morphology and why THCAS is expressed exclusively in that cell type.Q6. The bacterium Rhizobium radiobacter is well known to biologists because it has the rather astonishing ability to cause natural genetic engineering. That is, several genes are moved from the bacterial cells directly into the nucleus of cells of many higher plant species. Expression of these transferred genes in the infected plants stimulates cell division, creating a mass of undifferentiated tissue. Which of the following signals on these transferred genes could be recognized in the plant host cell but not in the original Rhizobium cell? “TATA” box transcription terminator hairpin loop intron splice signals SD box A. 1, 2 and 3 B. 1 and 3 C. 2 and 4 D. 4 only E. All of 1, 2, 3 and 4Describe the Egly precueing experiment. What is the same-object advantage,and how was it demonstrated by Egly’s experiment?
- Tell how have microarrays demonstrated that, all cells of anorganism have the same genome, some genes expressed in almostall cells, whereas other genes show cell- and tissue-specific expression?Can you solve all the parts to this question please a) What is the role of the LEAFY gene in floral development? (b) What is the phenotype of the leafy mutant? (c) Most of the ABC program genes are directly regulated by the transcription factor LEAFY (LFY). Still, LFY is expressed broadly throughout the floral meristem when the discrete A, B, and C domains are established. Discuss how this single broadly expressed transcription factor can generate distinct domains of ABC gene expression. Feel free to use diagrams.How did Covid-19 influence the rapid adoption of telemedicine.
- In roses, the synthesis of red pigment is by two steps ina pathway, as follows:colorless intermediate gene Pmagenta intermediate red pigment gene Qa. What would the phenotype be of a plant homozygousfor a null mutation of gene P?b. What would the phenotype be of a plant homozygousfor a null mutation of gene Q?c. What would the phenotype be of a plant homozygousfor null mutations of genes P and Q?d. Write the genotypes of the three strains in parts a, b,and c.e. What F2 ratio is expected from crossing plants fromparts a and b? (Assume independent assortment.)Can you answer both questions please (b) Based on the ABC model, what would be the predicted phenotype of a double AB mutant? (c) In developing flowers of dioecious Spinach and Thalictrum, stamens are not developed in female flowers, and carpels are not developed in male flowers. What is the simplest model of ABC class gene expression that might explain this?The Min System Draw a FtsZ mutant cell, MinD mutant cell, and a MinE mutant cell.
- In Arabidopsis, it is well-known that a pulse of full-spectrum light during the night (in an otherwise long night) will induce flowering. This suggests that plants measure the length of night, and not the length of day. If the pulse of light during the night was blue light instead of full spectrum light, what would be the flowering time response of a plant with a knockout in cry2 (relative to wild type in the same conditions)? Explain.Experiment: In this activity yo Page 5 ze the results of experiments that investigate nutritional requirement of several mutant strains of yeast. The mutations in these strains cause a nutritional requirement for an amino acid, such that the strains will not grow in media that lack one specific amino acid. Any mutant that has a nutritional requirement is called an auxotroph, and is incapable of growing in a "minimal medium" containing only a carbon source (e.g., glucose), a simple nitrogen source (e.g., ammonium sulfate), and various salts and minerals. Such strains can be supported on a medium supplemented with only the missing nutrient or on a "rich" medium that contains amino acids, vitamins, nitrogenous bases, etc. (often in the form of an extract from yeast). The wild-type individual that can synthesize the metabolic component is a prototroph, and is capable of growth on minimal medium. The mutant strains in this activity are unable to synthesize tryptophan, lysine, or histidine;…Give only typing answer with explanation and conclusion topic: molec bio - cell signaling Describe the role of notch and delta in development. What is lateral inhibition? The notch/delta signaling pathway is a good example of pathways which involve signal-induced protein cleavage. How does this process regulate notch/delta function?