To analyze:
The characters of normal Teosinte plant are unbranched, the same branch has female and male flowers, hard glume, and kernels. Maize has exactly opposite characters such as it is branched, has male inflorescence on its central branch, and female inflorescences on axillary branches. In addition, it has rows of kernels and soft glumes. A cross between cultivated maize and wild teosinte results in fully fertile
Introduction:
Since plants and animals have evolved from a common unicellular ancestor, multicellularity in plants and animals has evolved independently. The cell wall encases the plant cell and necessarily restricts them in the location of origin. The organs that are generated by pluripotent cells are added to the plants throughout their lifetime. Since plants are immobile, they need to change their developmental program according to environmental changes. So, plants with identical genotype may show variations according to the surrounding environment.
Want to see the full answer?
Check out a sample textbook solutionChapter 18 Solutions
Study Guide And Solutions Manual For Genetic Analysis: An Integrated Approach
- Consider the following hypothetical gene a plant g&T produces a protein that impacts the stem length. There are two alleles for GT which produces long stem and tea little tea which results in short stint. Which of the following genome types above would have a different pheno type? And what would the phenotype be for the genotype?arrow_forwardPlant breeders have long appreciated the phenomenon called hybrid vigor or heterosis, in which hybrids formed between two inbred strains have increased vigor and crop yield relative to the two parental strains. Starting in the 1930s, seed companies exploited the cytoplasmic male sterility (CMS) phenomenon in corn that was described in Problem 17 so that they could cheaply produce hybrid corn seed to sell to farmers. This type of CMS is caused by mutant mitochondrial genomes that prevent pollen formation. a. How would CMS aid seed companies in producing hybrid corn seed? Dominant Rf alleles of a nuclear gene called Restorer suppress the CMS phenotype, so that Rf- containing plants with mutant mitochondrial genomes are male fertile.arrow_forwardConsider this four-factor cross: Tt Rr yy Aa × Tt RR Yy aa, whereT = tall, t = dwarf, R = round, r = wrinkled, Y = yellow, y = green,A = axial, a = terminal. What is the probability that the first three plantswill have round seeds? What is the easiest way to solve this problem?arrow_forward
- Banana plants, which are triploid, are seedless and thereforesterile. Propose a possible explanation.arrow_forward. Seedless watermelons that you find in the supermarketare triploids, where x = 11. . What is the probability that a particular seed in atriploid watermelon will be viable? (Recall that aviable seed is a euploid zygote.)arrow_forwardCucumbers and melons are both members of the genus Cucumis, which includes members with distinct geographical origins: the Asiatic group and the African group. The African members of the genus possess disease resistance not found among the Asiatic members of the same genus, and scientists were interested in creating melon-cucumber hybrids that would possess enhanced resistance to mildew and plant viruses. Plant breeders have nicknamed this new fruit, the “melumber”, but its scientific name is Cucumis hytivus. Please fill in the table attached and answer the following questions. a.) Assuming that the Hoosier cucumber was produced in a laboratory at Indiana University, briefly describe the most likely method by which it was produced and the biological mechanism involved in the action of the agent utilized by the scientists. b.) Suppose scientists wanted to employ an alternative approach to producing cucumber plants that were resistant to the cucumber mosaic virus. List the steps…arrow_forward
- Cucumbers and melons are both members of the genus Cucumis, which includes members with distinct geographical origins: the Asiatic group and the African group. The African members of the genus possess disease resistance not found among the Asiatic members of the same genus, and scientists were interested in creating melon-cucumber hybrids that would possess enhanced resistance to mildew and plant viruses. Plant breeders have nicknamed this new fruit, the “melumber”, but its scientific name is Cucumis hytivus. Please fill in the table attached and answer the following questions. a.) Assuming that the Hoosier cucumber was produced in a laboratory, briefly describe the most likely method by which it was produced and the biological mechanism involved in the action of the agent utilized by the scientists. b.) Suppose scientists wanted to employ an alternative approach to producing cucumber plants that were resistant to the cucumber mosaic virus. List the steps involved in producing…arrow_forwardWhat is a feasible explanation why there is lesser percentage of germination and growth rate in monggo seeds when sprinkled with water added with 3/4 teaspoon as compared to monggo seed set-ups sprinkled with water?arrow_forwardLeaf color in plants is due to the chloroplasts and the amount of chlorophyll they contain. The color is ultimately determined from the ____. Organelles within the egg Organelles within the pollen Genes received from the egg Genes received from the pollenarrow_forward
- In the Primula plant, the blue flower color is due to malvidin, a pigment encoded by the completely dominant gene (M). Presence of only the recessive gene (m) leads to white flowers. The P locus controls pigment synthesis in the M locus such that dominant gene (P) stops pigment production, and recessive gene (p) allows pigment production. Two plants both having the MmPp genotype were crossed. Answer the following questions and show complete solutions to support your answers. Use the branching method whenever applicable. a. What is the phenotypic ratio of the offspring?b. What type of gene interaction is exhibited by the flower color in Primula?c. What would be the probability of getting plants that are pure-breeding for blue flower color?arrow_forwardAll of the following cells, shown in various stages of mitosis and meiosis, come from the same rare species of plant. a. What is the diploid number of chromosomes in this plant? b. Give the names of each stage of mitosis or meiosis shown. c. Give the number of chromosomes and number of DNA molecules per cell present at each stage.arrow_forwardYou are studying a plant with tissue comprising both green and white sectors. You wish to decide whether this phenomenon is due (1) to a chloroplast mutation of the type considered in this chapter or (2) to a dominant nuclear mutation that inhibits chlorophyll production and is present only in certain tissue layers of the plant as a mosaic. Outline the experimental approach that you would use to resolve this problem.arrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education