Q: Define the term maternal effect genes, and explain why the protein products of some of these genes…
A: Genes come in pairs and are responsible for the inheritance and expression of the associated…
Q: Explain the molecular mechanism of maternal effect.
A: The genes that are responsible for showing non-mendelian inheritance are found outside the nucleus…
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: Describe genomic imprinting
A: Gene is a functional unit of heredity. A gene is a sequence of nucleotides in genome that codes for…
Q: indicate the stage at which segmentation genes, homeotic genes, and egg-polarity genes would have an…
A: The function of genes is to transfer the information required for the synthesis of proteins. The…
Q: Define genomic imprinting.
A: Genes are the basic structural and functional unit of heredity. They carry coded genetic information…
Q: What are twins?Genetically what are the twotypes of twins that can begenerated?
A: Pregnancy is also termed as gestation during which one or more offspring develop in the uterus of a…
Q: Explain Bicoid is the anterior morphogen?
A: Introduction Bicoid: it is a protein product of maternal effect gene commonly found in flies such…
Q: What is the molecular explanation for maternal effect?a. The father’s gene is silenced at…
A: The maternal-effect is the influence on the phenotypic expression in an embryo or progeny due to the…
Q: Describe the formation steps of the dorso-ventral axis during development in Drosophila.
A: The mother fly produces oocytes that have already got anterior-posterior and dorsal-ventral axes…
Q: The marking process for genomic imprinting initially occursduringa. gametogenesis. c. embryonic…
A: Genomic imprinting basically refers to the phenomenon of gene expression in a…
Q: Define the expression of only the maternal allele ?
A: DNA is the hereditary or genetic material present in most of the living organisms. It is majorly…
Q: After a successful in vitro fertilisation, the fertilised egg begins to divide. Where is this egg…
A: IVF (In vitro fertilization) also known as test tube baby is a technique in which the natural…
Q: Carefully distinguish between the terms differentiation and determination. Which phenomenon occurs…
A: Cells are the basic, structural, and functional units of every single living being. Every cell…
Q: . Define the term morphogen
A: Morphogen is a substance whose non-uniform distribution governs the pattern of tissue development in…
Q: Explain how cellular differentiation and morphogenesisplay a role in development.
A: Developmental biology is about the study of embryo to adult formation from step to step process.…
Q: What are maternal-effect genes? When are gene products from these genes made, and where are they…
A: Multicellular life forms create from a solitary prepared cell. This phone is supplied with the…
Q: Describe the cascade of RNA splicing events initiatedby the Sxl protein that results in female…
A: In drosophila, the pre-mRNA undergoes sex-specific splicing to control sex determination. The…
Q: If a mother snail is heterozygous, Dd, which gene products will the oocyte receive?
A: The mom's genotype specifically influences her offspring's phenotype Broken rule: gene expression an…
Q: What role does induction play in development?
A: Induction is the developmental process by which specific tissue types affect the development of…
Q: Describe how different types of chromosomalrearrangements generate new gene products.
A: Chromosomes are composed of mainly deoxyribonucleic acid (DNA) and binding proteins.
Q: Where are maternal-effect gene products made first? Where do they go?
A: Maternal-effect genes are expressed by the mother before the fertilization process. These genes…
Q: Suppose someone identifies a “gene for” certain aspects of development. How might that statement be…
A: A gene is a specific sequence of nucleotides of a DNA that is expressed. While DNA is found inside…
Q: Explain the importance of differential gene expression in development
A: Explain the importance of differential gene expression in development?
Q: Explain how hormones are the mediators of development?
A: Ans: Hormones: These are chemicals which signals the body and controls the range of functions such…
Q: Effiency of LQG control ?
A: INTRODUCTION LQG control It is Linear Quadratic Gaussian control is a modern technique that dynamic…
Q: How is the inheritance of genes related to protein synthesis and the expression of traits in the…
A: The genetic material of an organism contains all the information about the organism. This genetic…
Q: are genes located in the same area as homogoulous cells?
A: The Principle of Independent Assortment states that two or more characters are inherited when the…
Q: Explain your understanding of the GENE concept? How is the inheritance of genes related to protein…
A: Genes are responsible for each and every characters of an organism. They are usually located in the…
Q: What is the most important gene in the XIC?
A: XIC is the X- inactivation center present on the q (long) arm of X chromosome. This region includes…
Q: Explain the unique features of Ig genes.
A: Ig genes encode Immunoglobulins which provide protection to our body from Pathogens or foreign…
Q: Explain Loss of p53 function leads to genomic instability?
A: The TP53 gene provides instructions for making a protein called tumor protein p53 (p53). This…
Q: What are some master genes important in embryonic development?
A:
Q: How do homeobox genes control segmental identity in drosophila embryo?
A: Homeobox genes encode DNA binding proteins that regulate the gene expression and controls…
Q: explain difference between maternal effect and cytoplasmic inheritance?
A: The branch of biology that includes the study of genetic variations, genes, and inheritance in the…
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: What are some master genes important in embryonic development? Discuss.
A: INTRODUCTION HOX gene HOX genes are the master gene involved in embryonic development in animals.…
Q: Briefly describe the molecular processes that cause one X chromosome in each female cell to be…
A: Inheritance is the process of transmitting the traits from parent to offspring. Traits of an…
Q: Distinguish between the syncytial blastoderm stage and the cellular blastoderm stage in Drosophila…
A: Both the syncytial and cellular blastoderm are early developmental stages of Drosophila. The…
Q: Describe how different types of chromosomalrearrangements alter gene expression patterns orgenerate…
A: Chromosomal rearrangement is a that is mutation caused by a breakage in the deoxyribonucleic acid…
Q: Explain maternal-effect mutations?
A: Mutation means sudden changes occur in DNA sequences. The mutation occurs randomly. It also occurs…
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: Identify Genes Required for Specific Developmental Processes
A: The gene can be defined as a basic physical and functional unit of heredity. The genes are made up…
Q: Describe how a morphogen acts in development.
A: Morphogen in development :-
Q: Explain dosage compensation?
A: It is a mechanism that helps in maintaining the number of X chromosomes by inactivating 1 X…
Q: List the stages of Drosophila development.
A: Drosophila is a fly that belongs class insecta and order diptera of Animal kingdom. It is commonly…
Explain mRNA and protein products of maternal effect genes within the early embryo?
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- Explain the molecular mechanism of maternal effect.explain gene targeting in embryonic stem cells?Describe the inheritance pattern of maternal effect genes. Explainhow the maternal effect occurs at the molecular and cellular level.What are the expected functional roles of the proteins that areencoded by maternal effect genes?
- Explain why axis-determination is a crucial aspect of embryonic development. Explain how maternal-effect genes encode cytoplasmic factors that play a role in axis determination.Define the term maternal effect genes, and explain why the protein products of some of these genes are called morphogens.Identify Genes Required for Specific Developmental Processes
- Describe the relationship between homeotic genes in Drosophila and in mice.Early development depends on the temporal and spatial interplay between maternally supplied material and mRNA and the onset of zygotic gene expression. Maternally encoded mRNAs must be produced, positioned, and degraded [Surdej and Jacobs-Lorena (1998). Mol. Cell Biol. 18:2892–2900]. For example, transcription of the bicoid gene that determines anterior– posterior polarity in Drosophila is maternal. The mRNA is synthesized in the ovary by nurse cells and then transported to the oocyte, where it localizes to the anterior ends of oocytes. After egg deposition, bicoid mRNA is translated and unstable bicoid protein forms a decreasing concentration gradient from the anterior end of the embryo. At the start of gastrulation, bicoid mRNA has been degraded. Consider two models to explain the degradation of bicoid mRNA: (1) degradation may result from signals within the mRNA (intrinsic model), or (2) degradation may result from the mRNA’s position within the egg (extrinsic model).…Explain how epigenetic modifications are involved in developmentalchanges that lead to the formation of specific cell types.
- Discuss the role of homeotic genes in development. Explain what happens to the phenotype of a fruit fly when a gain-of-function mutation in a homeotic gene causes the protein to be expressed in an abnormal region of the embryo. What are the consequences of a loss-of-function mutation in such a gene?Carefully distinguish between the terms differentiation and determination. Which phenomenon occurs initially during development?List the stages of Drosophila development.