Q: What are the major differences between cells undergoing replicative senescence versus cell crisis?
A: The human fibroblasts can divide only for certain periods of time after that they will lose the…
Q: Where are Drosophila melanogaster found?
A: Drosophila belongs to the family Drosophilidae, whose members are commonly called as small fruit…
Q: If a fertilized Drosophila egg is punctured at the anterior end and a small amount of cytoplasm is…
A: Egg polarity genes are the earliest activated genes, which decide the formation of main body axis;…
Q: describe the role of homeobox genes?
A: Homeobox genes are a bunch of genes that regulate development in cellular organisms; this includes…
Q: What are the types of enzymes found in virions and their functio
A: Virion : The complete , ineffective form of virus outside a host cell , with a core of RNA and…
Q: What is the difference between somatic cells and germ cells?
A: Introduction Cell is the basic unit of life. All organisms be it single cellular or multicellular,…
Q: What are Embryonic stem cells are used for?
A: ESCs (Embryonic Stem cells) or Human embryonic stem cells are used pluripotent cells which have the…
Q: What is meant by G0 Phase? What is the significance of cells that are permanently in this phase?
A: Cell cycle is an incident takes place inside the cell which is required for growth and maintenance…
Q: What experimental evidence demonstrates that molecular gradients in the egg control development?
A: Morphogens: A substance that standardize a graded distribution and elicit distinct cellular…
Q: Why do cancers, such as lung and pancreatic cancers, typically exhibit poor 5-year survival rates?
A: The most common cancer is lung cancer in the world. There were approximately 2 million cases in the…
Q: Why is cytokinesis important during the embryonic development?
A: A series of events that occurs in a cell to make it ready for the division is the cell cycle. There…
Q: What are knock-in animals ?
A: The process in which a gene is inserted at a specific locus in the genome to modify the function of…
Q: What is the importance of apoptosis in normal development?
A: A form of programmed cell death that is mediated by proteolytic enzymes called caspases is termed…
Q: : What is the difference between the G0 and G1 phases?
A: Interphase is the interval between two successive cellular divisions especially in eukaryotic cells…
Q: How is cell communication involved with processes of development?
A: Introduction Cell communication is the process by which cells interact with one another. Cells…
Q: Which of the following embryonic cell movements involves the desperation of cells from a continuous…
A: Gastrulation is the process where blastula implanted forms three germ layers, after week 3 of…
Q: How does a fertilized egg give rise to an organism with highly differentiated cells that are…
A: Developmental biology is the branch of science that includes the studies of a diversity of…
Q: What is protocooperation?
A: Mutualism refers to ecological interactions between organisms of different species in which each…
Q: what type of stem cells are found in the bone marrow and skin that go through mitosis frequently to…
A: Stem cells are unspecialized cells that has the ability to divide for indefinite periods and give…
Q: Under what conditions would a lag phase not occur?
A: The division of bacterial parent cells into two cells through the process of binary fission is known…
Q: Describe the molecular features of the homeobox and homeodomain. Explain how these features are…
A: Genes are the basic structural and functional units of heredity. They are composed of…
Q: What are the main events of the final mitotic period?
A: Mitosis is a cell division that divides a eukaryotic cell’s genetic information into two identical…
Q: a. What are the physical differences and similarities in the reproduction systems of plants and…
A: Reproductive system is a system in which one organism give rise to new individuals . Reproduction…
Q: What cell exports large amount of RNA to the oocyte?
A: Hi! Thanks for your question. But as you have posted multiple questions, I am answering the first…
Q: What are the role of different genes in cell differentiation?
A: Gene expression is the process in which the information stored in DNA is used to produce a…
Q: How does gene affects migrating cells?
A: Solution:- Firstly we can see what is migrating cells and which factor affect the cell migrating.…
Q: Which of the following best describes the concept of cell differentiation during the development of…
A: Development is the process of changing the shape, size and function of an organism during it's…
Q: What role do homeotic genes play in the development of fruit flies?
A: Drosophila melanogaster popularly known as fruit flies is one of the common organisms used in…
Q: What are the main events of the third mitotic period?
A: Cell division is a natural process in which a parent cell divides into two daughter cells. Cell…
Q: What are the main events of the second mitotic period?
A: Mitosis is a mode of cell division in which one cell divides to form two cells. It takes place in…
Q: WHAT IS THE IMPORTANCE OF GENE EXPRESSION DURING DIFFERENTIATION?
A:
Q: What are the main events of the first mitotic period?
A: Cell division is a natural process in which a parent cell divides into two daughter cells. Cell…
Q: What Is maturation?
A: Living organisms include a variety of organisms from microscopic creatures like bacteria and…
Q: How are genes turned on and off in embryological development?
A: One way cells regulate their genes is by DNA methylation, in which a molecule known as a methyl…
Q: Will a mutation in this gene display a defect in the mother with the mutation, or in her offspring…
A: Maternal effect of genetic and phenotypic expression usually determines certain characteristics…
Q: For successful reproduction to occur, various gonadotrophic hormones need to be involved. What…
A: Reproduction implies reproduction. Reproduction is the biological process by which an organism…
Q: What are transcription factors, and how do they influence development?
A: Gene expression includes transcription and translation.
Q: How many are in each stage?
A: Hi! Thank you for the question. It seems some of the cells aren't properly visible. So, I am…
Q: What are some functions of apoptosis in development?
A: Apoptosis is a form of 'coordinated and internally programmed cell death that have significance in…
Q: What is MyoD? What role does it play in cell differentiation?
A: What is MyoD? MyoD, also called myoblast determination protein which is found in animals that plays…
Q: How does a constant genome produce various cell types during embryogenesis?
A: Embryogenesis: Embryogenesis is the process of a zygote developing into a foetus. Embryonic…
Q: What is this survival signal?
A: Survival signaling is usually concerned with blocking the survival signals of the cancer cells.…
Q: How population senescence is different than organ senescence?
A: Senescence is a universal feature of all living organisms and involves the gradual deterioration of…
Q: Why do differentiating cells increasingly lose their developmental potential?
A: Cell is the smallest structural and, functional unit of life. It is simple machinery that houses all…
Q: What is the function of insulator sequences?What does Hox genes stand for? What is a sequence…
A: Genes are the basic biological unit of heredity. They are a segment of deoxyribonucleic acid (DNA)…
What are homeotic genes and what is the “homeobox” contained in such genes?
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- What is the role played by biophysical properties in mechanisms of morphogenesis?How do changes in gene expression relate to cell differentiation and specialization? Does every human cell have the same DNA, RNA or proteins?Explain why E is the correct choice. Various types of stem cells that develop from the mesoderm are involved in processes by which all cells of the protostomes and Deuterostomes obtain or regulate ions, molecules, or monomers (nutrients). Therefore, these cells will perform which of the following processes? a) Osmosis, b) active transport, c) facilitated diffusion, d) exocytosis, e) all are correct.
- How does gene expression influence the behavior of cells that contain the same genome (genetic information)? In other words, why do cells that belong to the same multicellular organism have a different structure and function?If we Remove transcription in the development equation, will an organism continue to exist?What specific molecular factors determine the differentiation of embryonic stem cells into different cell types during development?
- How are the genes in the beta-globin locus different from each other? A) They have different evolutionary origins, from different ancestral genes. B) They have different sequences and locations on the chromosome. (C) They are expressed at different times in developmnent. (D) Some are expressed in all cells; some are expressed only in red blood cells. E) They are dispersed on on different chromosomes.What is this survival signal?What is the purpose of a major histocompatibility complex?