Epithelium–Mesenchyme transitions (MET or EMT) are crucial morphogenetic events occurring during gastrulation. Give at least 3 specific examples of embryonic structures that develop in this manner, and the regulatory mechanisms that govern this transition. How would our understanding of this regulation affect cancer prognosis and treatment?
Q: . In mice, the following alleles were used in a cross: W = waltzing gait w = nonwaltzing gait G = no...
A: The collection of genes that make up a person's genotype is referred to as that person's genotype. I...
Q: a. Using the figures below, put a line on the location where body measurements heart girth (HG) and ...
A: * The body measurements of the different animals will be different. * The heart girth and body lengt...
Q: how to Make up own genetic problem involving of family with a punnet square!
A: In a family the incidence of cystic fibrosis is quite common. Cystic fibrosis has an autosomal reces...
Q: Contrast prokaryotic and eukaryotic gene characteristics.
A: Cell morphology, physiology, and other aspects of cell biology are studied in cytology. With a few e...
Q: Fill in the cells below showing the process of meiosis of the male's sex chromosomes with non- disju...
A: Non-disjunction : During meiosis the homologous chromosomes pair up and undergo crossing over this s...
Q: Distinguish between humoral immune response and cell- mediated immune response.
A: DEFINITION Humoral Immunity Humoral immunity is mediated by antibodies. It displays a fast response...
Q: Botanicals are considered a "safe" treatment and adjuvant to proscribed drugs in the U.S. However, t...
A: Ephedrine is a modified amphetamine and sympathomimetic amine. Its chemical structure is comparable ...
Q: In yeast cells, telomerase remains active and maintains telomeres of about 300 base pairs. Propose w...
A: Telomeres play a very important role in preserving our genome information.
Q: Body Weight Determination Pig - Cattle - HG: 121 cm, BL: 117 cm HG: 208 cm Method Pig ID# Cattle ID ...
A: Formula to measure body weight = Square the Heart Girth to get the Girth Result then Multiply the G...
Q: Describe the experimental rationale that allowed the lacrepressor to be isolated ?
A: A gene is a fundamental unit of heredity and a grouping of nucleotides in DNA (deoxyribonucleic acid...
Q: a. What is Type I and Type II embryogenesis? When did they evolve? Compare the two and give an examp...
A: Answer :: a) In developmental biology, the development of an animal or plant embryo is embryonic d...
Q: 5'- CTC GAG CGA AG was obtained as a dry solid. The sample was dissolved in 1000 ul of deionized wat...
A: Concentration of DNA = 50 × dilution factor × absorbance (ug per mL)
Q: Compare the Pre-Darwinian and Darwinian times
A: Pre-Darwinian time: there is everything fixed in nature. Every organisms present on this planet is s...
Q: What is shown in the image above? one doubly compound leaf many simple leaves needle-like leaves tha...
A: A doubly compound leaf or bipinnate leaf is a leaf that is divided twice in which the leaflets are a...
Q: Question 8: The following table shows the glycolysis reactions and their standard Gibbs free energy ...
A: The Vital process for to generate energy to run various metabolic, physical activities is the Glyco...
Q: Why do lipids contain more energy than carbohydrates?
A: Biological macromolecules are classified into three types: Carbohydrates The nucleic acids Proteins...
Q: A gene contains the sequence CGCATACGGTAC that results in the amino acid sequence arg-ile-arg-tyr. A...
A: Point mutations can be defined as mutations in single nucleotides. In point mutation, a nucleotide m...
Q: ABC transporters (a) use the energy of ATP hydrolysis to transport certain ions and sugars (b) are i...
A: ABC transporters transport ligands across cellular lipid membranes, which is critical for most aspec...
Q: The cell cycle Illustrate the role of the cell cycle (mitosis) and differentiation in producing and ...
A: Every cell has a nucleus, which contains the genetic material, DNA. Genes are Deoxyribonucleic Acid ...
Q: Why do gram-positive bacteria not produce endotoxins?
A: ExotoxinsThey are proteineous substances that are produced within the bacterium as a byproduct of gr...
Q: Based on prior experiments, you have determined that for a culture of S. aureus an absorbance readin...
A: In this question, we are given that 1 absorbance reading of S.aureus culture contains 5.75 x 106 ce...
Q: Explain the phrase, “Survival of the fittest.”
A: This phrase was developed from evolutionary theory of Darwin, through which he explained the complet...
Q: What happens to the yeast telomeres over time if the telomerase RNA retains the same anchor but is a...
A: Telomeres These are specialized DNA caps that help in preventing the loss of genes as chromosome end...
Q: What is the order of tissues in a cross-section of the stem in a woody eudicot (from the inside to t...
A: Cork cambium:- Dicots plants undergo primary as well secondary...
Q: wrist and ankle are type of Irregular bones O Long hollow bones O Cylindrical bones O Ribs O
A:
Q: Show the pathway for the biosynthesis of pectin compound in plant using glucose or galactose as prec...
A: Pectin is structurally and functionally the most complex polysaccharide in plant cell walls. Pectin ...
Q: A mother with type A blood type and a father with type B blood type have a child with blood type AB....
A: Introduction For A blood group genotype is either IA IA or, lA IO . For B blood group genotype ...
Q: Ms. Biñas is a plant lover. She amused herself by often seeing those beautiful greeneries with combi...
A: The phenotypic traits in organisms are controlled by genes. A gene can exist in many different forms...
Q: what is evolution and its importance? How would you explain it?
A: Evolution is merely a hypothesis. It is not a scientific law or a reality. Many people remember lear...
Q: What conclusion could you reach about the parents if the offspring had phenotypes in the following p...
A: It is form of gene interactions in which both the allele are partially expressed.
Q: Can you show me the testcross
A: Recombination Recombination is the process where a part of chromosome is broke up and bind with ano...
Q: Constructing a Genetic Map with a Two-Point Testcross Gene loci in testcross Recombination frequency...
A: Test cross data analysis us to measure the frequency of gametes.
Q: Detail the key differences between lytic and nonlytic viral infection and provide an example of each...
A: Phages are viruses that infect bacterial cells.
Q: Which of the following statements is true about conventional breeding and biotechnology?A. Conventio...
A: Conventional breeding is the process which help in development of new varieties (cultivars) of plant...
Q: The human blood is classified into four different blood types, namely A, B, AB, and O, due to the di...
A: Answer :: First we shoud know Agglutination. Agglutination is the formation of the clumps of cells w...
Q: d. GGHhli- e. NnOoPPQg- VvWwXxYvZ- f.
A: Genotype is a an individual collection of genes. Phenotype is the physical appearance of an organism...
Q: What is denaturation and renaturation of DNA?
A: In the nucleus of eukaryotes, DNA is divided into chromosomes. The human genome, for example, is com...
Q: How do we detect relatedness among species?
A: Evolutionary relationships are patterns to understand the descent of organisms.
Q: Natural Selection Free Response Question Name: Independent Black Bears European Brown Bears Polar Be...
A: As per guidelines, we are supposed to answer only one question (first one). Please repost others. P...
Q: The thermodynamic properties governing the surface tension between water molecules and the grains of...
A: *It is given that thermodynamic properties will governs to hold the grain and water to hold together...
Q: Which of the following incorrectly describes the difference between eukaryotic and prokaryotic gene ...
A: A) The promoter region of prokaryotes and eukaryotes are different. This region composed of bases wh...
Q: Fill in the cells below showing the NORMAL process of meiosis of the male's sex chromosomes (XY – th...
A:
Q: Homeostasis has been characterized by all living organisms, which is essential for survival. Which o...
A: When an object consists of cells, responds to the environment, grows and develops, produces offsprin...
Q: How is the structure of Trichomonas vaginalis well suited to its parasitic lifestyle inside the host...
A: Trichomonas vaginalis is a parasitic protozoan that causes trichomoniasis, a serious sexually transm...
Q: What are the possible phenotypic (P) and genotypic (G) ratios if you cross two parents who are carri...
A: Mendel's laws of inheritance : The Mendel's laws of inheritance include law of dominance, law of seg...
Q: step during the central dogma in which the Down syndrome becomes apparent and explain how it’s appar...
A: The process by which the instructions in DNA are converted into a functional product is refers as th...
Q: List down all the possible types of gametes produced by the following individuals with genotypes: a...
A: Genotype can be defined as a genetic constitution of an organism for a particular trait. Allele is a...
Q: What is the difference between mitosis and cytokinesis
A: In the cell division cycle, mitosis and cytokinesis are two distinct processes. The nuclear division...
Q: Make simple diagrams tracing the life history of Taenia solium.
A: The pig tapeworm, Taenia solium, is a cyclophyllid cestode belonging to the Taeniidae family of cycl...
Q: An analysis of an octopus’s DNA determines that the nitrogen base thymine makes up 18 percent of the...
A: Introduction DNA has four nitrogen bases - Adenine Guanine Thymine Cytosine Chargaff's rule ...
Epithelium–Mesenchyme transitions (MET or EMT) are crucial morphogenetic events occurring during gastrulation. Give at least 3 specific examples of embryonic structures that develop in this manner, and the regulatory mechanisms that govern this transition.
How would our understanding of this regulation affect cancer prognosis and treatment?
Step by step
Solved in 2 steps
- What statement best describes the difference between "fate maps" and "specification"? If cells are transplanted from their normal region in an embryo to a different region in a recipient embryo, such cells will alter their fate, but not their specification. Cell fate map describes the allocation of cells to the germ layers, ectoderm, mesoderm, or endoderm, whereas specification describes the exact tissues that each cell will ultimately become. The fate map of an embryo does not change during development -- the fate map of an egg is the same as the fate map of a late blastula -- whereas the specification map of an embryo changes continually as the embryo's development proceeds. The fate map of a cell is determined by labelling that cell and following it during normal development, whereas the specification state of a cell is determined by culturing a cell in an artificial medium and observing what tissues form from it.If cells choose to become trophoblast, they will end up in the placenta. If they choose to become ICM, they will give rise to the 3 germ layers that will make up the rest of the body of the embryo. Explain what rpocesses or mechanisms will guide them to make the right decision. Do they have a choice?A classical experiment studying the fate determination of stem cells in the developing embryo uses the transplantation of somites from one organism to another. In such an experiment, a scientist transplanted somites 20, 21, and 22 from the right side of the neural tube from five-day-old developing quail embryos into chick embryos. The transplantation was performed in two orientations so that the order of the somites was sometimes reversed. Use the passage to answer the question. Central self-tolerance in the immune system arises when maturing T cells in the thymus undergo apoptosis when they bind to self-antigens. Based on this information, what would MOST likely occur as the chick immune system develops? A. T cells would recognize transplanted quail somites as foreign and rapidly divide. B. T cells would recognize transplanted quail somites as foreign and undergo apoptosis. C. T cells would recognize transplanted quail somites as self and rapidly divide.…
- A classical experiment studying the fate determination of stem cells in the developing embryo uses the transplantation of somites from one organism to another. In such an experiment, a scientist transplanted somites 20, 21, and 22 from the right side of the neural tube from five-day-old developing quail embryos into chick embryos. The transplantation was performed in two orientations so that the order of the somites was sometimes reversed. Use the passage to answer the question. Suppose that somite stem cells commit to their cell fates by three days post fertilization. Which result would be MOST likely in the chick embryos receiving somites transplanted in the reverse order? A. The organs arising from quail somites develop in a normal order because local signaling molecules appropriately pattern the developing organs. B. The organs arising from quail somites develop in a normal order because transcriptional programs activated in the nucleus cannot be reversed.…A classical experiment studying the fate determination of stem cells in the developing embryo uses the transplantation of somites from one organism to another. In such an experiment, a scientist transplanted somites 20, 21, and 22 from the right side of the neural tube from five-day-old developing quail embryos into chick embryos. The transplantation was performed in two orientations so that the order of the somites was sometimes reversed. Use the passage to answer the question. Observations of the developing chick embryo reveal that skeletal muscles develop from the transplanted somites even though motor neurons innervating those muscles arise from chick neural crest cells. Based on these observations, what is MOST likely true? A. Neural crest cells differentiate into somites. B. Neural crest cells fuse with developing somite cells. C. Neural crest cells develop from migrating somite cells. D. Neural crest cells send projections into developing…A classical experiment studying the fate determination of stem cells in the developing embryo uses the transplantation of somites from one organism to another. In such an experiment, a scientist transplanted somites 20, 21, and 22 from the right side of the neural tube from five-day-old developing quail embryos into chick embryos. The transplantation was performed in two orientations so that the order of the somites was sometimes reversed. Use the passage to answer the question. As the somite cells develop into muscles, regular depolarizations in the muscles are required for the brain to properly form circuits with developing organs. Based on this observation, which prediction is MOST likely true? A. The muscles release neurotransmitters to stimulate the innervating neurons. B. The innervating neurons release neurotransmitters to stimulate the muscles. C. The muscles release hormones to stimulate the innervating neurons. D. The innervating neurons…
- --------------- A. Answer the following questions briefly (3-5 sentences only).1. How are the three axes for symmetry in the animal bodies established?2. Explain how the different germ layers give rise to different tissue types.3. Explain the role of axis formation in development B. write down the autapomorphic traits for the c3, c4, CAM plants and include their distinct environments Link: https://www.nature.com/scitable/knowledge/library/the-ecology-of-photosynthetic-pathways-15785165/Researchers investigated the step-by-step processes of cell differentiation in somites through experiments in which cells were transplanted from one location to another early after somite formation. What did these experiments show? The cells of a somite are determined as the somite matures in response to cell-to-cell signals. The cells of a somite are irreversibly determined as soon as the somite is formed, based on cell-to-cell signals. The cells of a somite are determined as the somite matures in response to internal cytoplasmic signals. The cells of a somite are irreversibly determined as soon as the somite is formed, based on internal cytoplasmicIn neurulation, what cell types are involved? What morphogens are present (and antagonists)? What transcription factors are there? What tissues/tissue types are there? What are the signaling pathways used and how do each function? What's the end goal, and what is the response in development? Draw a labeled diagram or detailed flow chart of neurulation in embryos to show this.(FYI, this is one practice question. No grading involved.)
- Zygote Embryo Muscle cells Intestinal cells Liver cells Blood cells Nerve cell Cardiac cells (1) Specialization occurs, resulting in the formation of a great variety of cell types. (2) Genes are inserted into the zygote to allow for the formation of different cell types. (3) The expression of genes responsible for the different cell types is controlled by the placenta. (4) The genetic information in the zygote is divided to produce a complete set for each cell typeWhat are morphogens? Explain how they influence tissue patterning during embryonic development. Describe TWO specific examples to support your explanation.cells of other germ layers such as neuronal cells from ectodermal lineage. This Mesenchymal stem cells are one of the adult stem cells with a germ spesific mesodermal differentiation capacity as well as partial specialization ability into qualification of adult stem cells 103 31200103 A. plasticity B. immortalization totipotency E. pluripotency D0103 31200103 31200103 31 31200103 D3 31200103 31200103 31200103 31200103 31200103 31200107 31200103 31200103 31200103 31200103 3120