Q: Fill in the blank: _________________ is the phase of development during which cellular divisions…
A: The multicellular organisms develop from an early stage called an embryo. Embryonic development…
Q: A research study indicated that an agent in cigarette smokecaused the silencing of a…
A: Covalent histone modification can lead to epigenetic changes. It is the covalent modification of a…
Q: Explain why maternal effect genes exert their effects during theearly stages of development
A: Gene is a functional unit of heredity. A gene is a sequence of nucleotides in genome that codes for…
Q: Briefly discuss the secondary vesicles in the embryonic development.
A: Embryonic development in other terms is called as the embryogenesis is the process of development…
Q: What is delayed implantation? Why is it important in marine mammals?
A: It is a reproductive strategy used by approximately 100 different mammals in seven or eight…
Q: What is the purpose of cleavage during embryonic development? To allow the embryo to get larger To…
A: Cleavage is act of splitting or dividing of cell. Cells divide without increase in mass.
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: In Figure 13-2, the transplantation of certain regions of embryonic tissue induces the development…
A: The ectoderm, mesoderm, and endoderm are three germ layers in the embryo that give rise to all cells…
Q: Explain how telomeres influence cellular aging.
A: Introduction Ageing of cells can be attributed to several factors such as degradation of cellular…
Q: What is organogenesis, and why is this concept important to the process of development?
A: Question - What is organogenesis , and why is this concept important to the process of development ?…
Q: . It's possible that a bone tumor will not show up on an x-ray ) image but will show up in a gamma…
A: Cancer is the leading cause of death worldwide, according to the World Health Organization (WHO).…
Q: Gene dosage—the number of copies of a gene that areactively being expressed—is important to proper…
A: The number of copies of a particular gene, present in the genome refers to gene dosage. A proper…
Q: Question 11 Which is TRUE for embryonic development of prc O Lacking three germ layers O…
A: A protostome could be a cluster of animals that has invertebrates like arthropods (insectsand…
Q: Discuss the genetic engineering of nodulation genes and the molecular events that occur during…
A: * Nodulation is an host specific process where rhizobium will be having a defined host plant range.…
Q: Name the enzymes present in peroxysomes?
A: A membrane bound organelle present in the cytoplasm of all eukaryotic cells is termed as…
Q: During development, some ectodermal stem cells differentiate into skin cells muscle cells while…
A: Answer: Stem cells = These are the cells with special feature those are present at the embryonic…
Q: Genetic mutations can provide insights into the mechanisms of complex cellular or developmental…
A: The term- mutation has been described as changes to the base pair sequence of the genetic material…
Q: Discuss Inactivating the genes forsome ECM proteins results in defective skeletal development…
A: The extracellular matrices are composed of protein and polysaccharides that are present in between…
Q: give the Significance of the ff Cleavage to embryogenesis CAMs and Junctional…
A: * cleavage means division of cells in embryo . * The cells formes as result of cleavage are…
Q: Discuss the molecular players in myogenesis. Specify their role in the process.
A: Embryonic stem cells are pluripotent cells that can differentiate and proliferate into different…
Q: Explain the importance of differential gene expression in development
A: Explain the importance of differential gene expression in development?
Q: Mesenchymal stem cells are one of the adult stem cells with a germ spesific mesodermal…
A: Stem cell are special group of cells in the body which have the ability to self renew and…
Q: Poor embryonic development occurs because ____________________________.
A: After fertilization, a single celled diploid zygote is formed, which later develops into…
Q: A zoologist is studying a deer and found out that a gene is located on autosome two. This gene…
A: The autosome chromosome means any chromosome other than sex chromosome. Given: A gene controls…
Q: The bli-1 gene in C.elegans is a type of tubulin actin integrin collagen
A: Gene Gene is a set of nucleotide sequence present in the DNA which code for specific polypeptide…
Q: True or false: The telomere-shortening theory is an example of a stochastic theory of cell aging.
A: It is thought that, as a cell divides, the telomeres become shorter and shorter each time until they…
Q: The somatic stem cells are derived from source such as_________.a) Bone marrow, embryos, amniotic…
A: Somatic stem cells, also known as adult stem cells are undifferentiated cells that are found in the…
Q: The tertiany structure of a proteln is establised by.
A: Primary Structure of protein is a linear sequence of amino acids that is linked by peptide/amide…
Q: Explain the Role of telomere in regards to cancer
A: Telomeres gradually shorten with each cell division, resulting in less protection for the…
Q: Mutations in x genes remove proximal segments during segmentation. gap
A: Mutations in segment polarity genes remove proximal segments during segmentation.
Q: distinguish between hemimetablous and holometabolus development
A: Introduction: Metamorphosis is a biological process of the development of an animal. It involves…
Q: Differential Hox gene expression along the anterior-posterior axis in the trunk sets up a prepattern…
A: Hox genes are the set of transcription factor genes that specify segment identity and provide cells…
Q: define mutator genes and explain their role in carcinogenesis
A: Carcinogenesis is a multistage and multistep process involving modification and mutation to genes…
Q: what are notch 2 mutation diseases
A: Notch 2 is a protein coding gene from the notch family. It provides instructions for making a…
Q: During embryogenesis, how do segments become different that one another?
A: The process of forming and developing an embryo from a zygote (zygotic embryogenesis) or a somatic…
Q: The nematode C. elegans has proved to be a valuable model organism for studies of cell birth, cell…
A: Caenorhabditis elegans is a nematode worm that is used as a model organism to study cell…
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: why does a high concentration of Abscisic acid (ABA) inhibit elongation of the coleoptile segments?
A: According to the question, we have to explain the reason behind the inhibition of elongation of…
Q: Why do flexion and torsion events occur in the developing embryo?
A: LONGITUDINAL FOLDING (Torsion) produces both head- and tailfolds, or flexion, and creates a cranial…
Q: Describe the relationship between telomeres and senescence.
A: Chromosomes are the linear structures present during cell division.
Q: what kind of division can perform normal growth and development for the embryo & why
A: The embryonic development process initiates after the fusion of male and female gametes. It involves…
Q: A classical experiment studying the fate determination of stem cells in the developing embryo uses…
A: Introduction Muscles are a type of soft tissue. muscles are made up of a lot of flexible fibres.
Q: The process by which an animal's embryonic cells specialize into specific cell types is called ___.…
A: Cell is the smallest structural and, functional unit of life. It is simple machinery that houses all…
Q: The Embryonic stem cells can be derived from _______ which is developed by “invitro…
A: The egg cell fuses with the sperm cell to form the zygote. The zygote develops into an embryo where…
Q: Discuss the role of par genes in generating anterior/posterior polarity in the C. elegans embryo.
A: C. elegant is a nematode that is used as a model organism in developmental research. Six proteins…
Q: The following are all physiological funcitons of Vitamin A EXCEPT: nerve conduction…
A: Question - The following are all physiological funcitons of Vitamin A EXCEPT: A.) nerve…
Q: It appeared, then, that something in the region of the gray crescent was essential for proper…
A: The amphibian eggs, when divided into two blastomeres along the plane of first division, the cells…
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- Discuss the molecular players in myogenesis. Specify their role in the process.Marfan syndrome is due to a mutation in a gene that encodes aprotein called fibrillin-1. It is inherited as a dominant trait. Thefibrillin-1 protein is the main constituent of extracellular microfibrils.These microfibrils can exist as individual fibers or associatewith a protein called elastin to form elastic fibers. People with thedisorder tend to be unusually tall with long limbs, and they mayhave defects in their heart valves and aorta. Let’s suppose aphenotypically unaffected woman has a child with a man whohas Marfan syndrome.A. What is the probability this child will have the disease?B. If this couple has three children, what is the probability thatnone of them will have Marfan syndrome?What specific molecular factors determine the differentiation of embryonic stem cells into different cell types during development?
- The BMP-Nodal gradient so vital to amphibian and fish development may be critically important in other vertebrates (including humans) as well. Moreover, can any field of pluripotent cells (such as human embryonic stem cells)respond to gradients of BMP and Nodal signals?What is the expanded form of CRP ?Why the process of DNA is transcribed into mRNA and then translated into protein is referred to as the “central dogma” of biology? Give one scenario that would explain how a mutation in the DNA of the Piedmontese bull could lead to muscle hypertrophy. If more cows had the same musculature as the Piedmontese bull, how would that affect meat production in countries that use cows as a primary meat source?