What four types of cellular processes must occur to enable a fertilized egg to develop into an adult multicellular animal? Briefly discuss the role of each process.
To review:
Thefunction of four cellular processes that are required to enable a fertilized egg to develop into an adult multicellular animal.
Introduction:
Development is a continuous change in shape, size, and function, throughout the life of an organism. The multicellular development in animals follows a body pattern, which depends on the arrangement of cells and their specialization.
Explanation of Solution
During the period of development, the cells divide repeatedly to produce different cells with amazing complexity and precision.For the development of human embryos, the following processes are necessary to produce a multicellular organismThefour essential processes are mentioned below:
1. Cell division: It is one of the significant processesrequired to produce more new daughter cells that are involved in the making of various body parts.
2. Celldifferentiation: It occurs when a cell acquires a particular function. It is required to create different cell types to carry out specialized functions.
3. Cellmovement – It is needed during embryonic development to produce an embryo with proper organization of germ layers and cells.
4. Celldeath – It is essential for the construction of various structures of the body.
When an embryo is developing, all the above steps are required for the proper production of body organs.The timing of gene expression and the localization of gene products at precise regions in the fertilized are the critical phenomena that underline the coordination between various processes.
For example, in mammals, the hand is a flattened oval structure in the early embryonic stage of development. The fingers are developed due to the occurrence of cell death present in between the region of every finger.
Therefore, it can be concluded that afertilized eggdevelops into an adult multicellular animal with the help of four essential processes, namely cell movement, cell division, cell death, and cell differentiation. The coordination of these four events leads to the formation of a body with a particular pattern.
Want to see more full solutions like this?
Chapter 26 Solutions
Genetics: Analysis and Principles
- What generates the first differences among cells in an early embryo? And what controls the differentiation of all the various cell types as development proceeds?arrow_forwardHow are mammalian extraembryonic membranes formed?arrow_forwardWhat determines whether a cell is to become a trophoblast cell or a member of the inner cell mass?arrow_forward
- How the fertilized egg of a multicellular organism becomes an adult?arrow_forwardDefine segmentation, and give two examples of segmented structures in the embryo.arrow_forwardAll of the cell types of an adult vertebrate develop from three primary embryonic germ cell layers, e.g. skin epithelium originates from ____ and intestinal epithelium from ____. A)ectoderm, endoderm B)ectoderm; ectoderm C)endoderm; endoderm D)endoderm; ectodermarrow_forward
- Which of the following extra-embryonic membranes becomes the embryonic portion of the structure involved in waste and nutrient exchange between the embryo and the mother? Select one: A. Amnion B. York sac C. Chorion D. Trophoblastarrow_forwardWhich of the following structure develops into only the fetus? A. Blastocyte B. Zygote C. Trophoblast D. Inner cell massarrow_forwardWhat is your opinion of the status of an 8-celled human embryo? Why?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