(a) What is the mutant that helps us to understand the adaxial identity of leaf development and the laminar outgrowth? (b) What is the mutant phenotype? (c) Which kind of protein does this gene encode?
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(a) What is the mutant that helps us to understand the adaxial identity of leaf development and the laminar outgrowth?
(b) What is the mutant
(c) Which kind of protein does this gene encode?
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- Can you clearly type the answers to the 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.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.You are a developmental geneticist studying flowering time variation in Arabidopsis. You perform a mutagenesis screen to identify mutants in the photoperiod pathway. Given what you know about photoperiodism in Arabidopsis, what phenotype are you looking for and under what photoperiodic conditions would you perform the experiment? delayed flowering in long days delayed flowering in short days same flowering in short days early flowering in short days same flowering in long days early flowering in long days
- What are phase changes in plant development? What two groups of genes control the formation of the flower? What is the ABC hypothesis?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?What is a meristem? Explain the role of meristems in plant development.
- Can you answer all the parts to this question please (a) What are the advantages of the self-incompatibility (SI) system in plants? Give at least three advantages. (b) What are the differences between gametophytic SI and sporophytic SI?What are the molecular mechanisms that regulate the development and differentiation of plant tissue systems, such as the vascular, meristematic, and epidermal systems, and how do these processes contribute to the growth and adaptation of plants to their environment?Can you answer part a-c if its true or false a) the AP3 and PI show auto- and cross-regulatory interactions, as well as they form obligate heterodimers to carry out the B class gene function. Therefore, if there is no PI expression, AP3 expression alone is not sufficient for establishing the petal and stamen identities. b) Angiosperm is a group of plants whose seeds are borne within a mature ovary (fruit). c) The organ in different organisms under every variety of forms and functions due to evolutionary development from the same or a corresponding part in a common ancestor is homologous.
- Q Q Normal BIU A - A- 1. Of the following characteristics of plants, which are inherited (shared with green algae) and which are new (evolved within the plant lineage only)? a) Multicellular sporangia b) Presence of chloroplasts c) Sessile (doesn't move) d) Embryos supported by parents. e) Apical meristems f) Cellulose cell walls 2. Designate each of the following as haploid or diploid. a) Green part of a moss b) Liverwort sperm c) Fern sporophyte d) Cells making up the antheridium of a fern gametophyte e) Plant spore f) Plant embryo Fill in the blank: 3. 1:54 SAMSUNGSuppose a flower had normal expression of genes A and Cand expression of gene B in all four whorls. Based on the ABChypothesis, what would be the structure of that flower, startingat the outermost whorl?(A) carpel-petal-petal-carpel(B) petal-petal-stamen-stamen(C) sepal-carpel-carpel-sepal(D) sepal-sepal-carpel-carpeld. Based on ABC model of floral development, this/these gene/genes controls/control the development of stamens in the third whorl of a flower. (A) A class gene (B) B + C class genes (C) A + B class genes (D) C class gene