How do fruit fly maternal effect genes determine thepolarity of the egg and the embryo?

Q: Y Why is fetal Hb essential for the survival ofplacental animals?

A: Hemoglobin is an oxygen transport protein in mammals. It is made up of four subunits. Adult…

Q: What parts are persistent throughout the development of the embryo? Why are these present in all the…

A: Answer

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: Where are Drosophila melanogaster found?

A: Drosophila belongs to the family Drosophilidae, whose members are commonly called as small fruit…

Q: At which stage of development does XCI initially occur?

A: In many species, genes located on the sex chromosome determined the sex of an individual. In…

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: What generates the first differences among cells in an early embryo? And what controls the…

A: Embryonic differentiation refers to the process in which embryonic cells possess specialization and…

Q: With regard to development, what are the roles of the maternaleffect genes versus the zygotic genes?…

A: Maternal-effect is a phenomenon in which the phenotype of the offspring is defined by the genotype…

Q: What are homeotic genes and what is the “homeobox” contained in such genes?

A: A gene can be defined as the physical and functional unit of the hereditary. Genes consists of…

Q: What is the significance of cleavage during the early stages of development?

A: The cleavage is the division of cells in the early stage of an organism. This implies that with each…

Q: what is the chromosomal system for determining sex in mammals?

A: Chromosomal determination of sex It is also known as allosomic determination of sex and is based on…

Q: Describe two ways that an oocyte avoids polyspermy.

A: The fertilization of the egg takes place by the fusion of the sperm and the ovum. Sperm is produced…

Q: how can I Identify  the source (mechanism) and types of increased mutations in older mother oocytes…

A: Delayed parenthood has increasingly adverse effects on reproduction. In an older male, sperm quality…

Q: State the neuromere origin of each brain region?

A: Introduction Neuromeres Are Known As The Segments Of The Neural Tube That Forms The Embryonic Brain…

Q: causes a deletion to occur during early fetal development.? is it an alteration

A: If there is deletion or Insertion of one or a few nucleotides in the DNA molecule, then it will…

Q: How do the amount and distribution of yolk influence gastrulation?

A: Gastrulation is a process in which the single layer of cells called blastula is arranged into a…

Q: How do the mechanisms of fertilization ensure control of both quality (fertilization by a sperm of…

A: Fertilization is the process of fusion of haploid gametes to form diploid zygotes. The zygote…

Q: What parts are persistent throughout the development of the embryo? Why are these present in all the…

A: The fitness of the organism depends on the early stages of embryonic development, which include…

Q: What are the distinguishable parts of the 72-hour chick embryo? Give at least 5 parts and the adult…

A: Probably the best magical occurrence of nature is the change of the egg into the chick. A chick…

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 will be the effect on sexual development in newly fertilized Drosophila embryos if the…

A: Sex determination in drosophila melanogaster is done by balancing the male determinants on the…

Q: what is celluar cleavage thats occur in the early stages of development?

A: The development of an embryo is characterized by the process of cell division and cellular…

Q: What is the difference between direct and indirect development?

A: Development refer to the process of the formation of the adults from the progeny stage. There are…

Q: What is the significancw of cleavage in early development? Discuss.

A: The repeated mitotic divisons of the fertilized egg (zygote) is called cleavage. It is preceeded by…

Q: What are haploidentical maternal regions?

A: Haploidentical transplant is a type of allogenic transplant. It is a half matched stem cell…

Q: what does a "fetal development" concept map look like with 10 words or phrases?

A: Fetal development in shortest words.

Q: What happens when Wnt4 genes are activated? What gonads developed?

A: Wnt4 proteins are encoded by Wnt genes which are present on chromosome number 1. Presence of Wnt4…

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: Explain mRNA and protein products of maternal effect genes within the early embryo?

A: Embryonic development refers to the development and formation of the embryo. It is characterized…

Q: Outline the molecular mechanism of sex determination in Drosophila and mammals.

A: Sex determination refers to determining the sex of an individual. The sex of an organism is…

Q: What will be the effect on sexual development in newly fertilized Drosophila embryos if the…

A: Sex determination in Drosophila is achieved by the balance of female determinants on the X…

Q: What are the relative merits of Drosophila, C. elegans, M. musculus, and Arabidopsis as model…

A: Model organisms are employed in research experiments to study a specific phenomenon where the…

Q: What result would Jost have obtained if female development alsorequired a signal from the gonad?

A: Endocrine system is a regulatory system of ductless glands that secrete chemical messengers called…

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 the characteristics of the cleavage embryo?

A: Answer : Cleavage is the mitotic division in which the daughter cells are formed from the parent…

Q: How does sex determination in Drosophila differ from sex determination in humans?

A: Sex determination is a method for determining the sexual characteristics within an organism. These…

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: How do the processes of capacitation and acrosome reaction affect the fertilization process? How do…

A: Introduction  Fertilization refers to the process when there is a fusion of male and female gametes…

Q: What is indirect development?

A: Development involves the functional and physiological maturation of an individual. It is a…

Q: In general what is thecause of the aneuploidies?

A: Aneuploid cells have an irregular chromosome count. Because each chromosome comprises hundreds of…

Q: Are different stages of development tend to generate differences in stimulating cleavage and…

A: Cleavage -- Term cleavage is defined as a series of rapid mitotic division of zygote after…

Q: What is the difference between sex determination in mammals and in Drosophila?

A: Sex determination is the process of identification of different sex that is male and female, in…

Q: Describe the major difference between sex determination in Drosophila and in humans.

A: Drosophila melanogaster refers to the fruit fly which is widely used in genetic research as it has…

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: Does the distribution of Ca21 in an egg correlatewith formation of the fertilization envelope?

A: Calcium plays a very significant role in several life processes that takes place within the body of…

Q: How does distribution of the gray crescent affectthe developmental potential of the first two…

A: Introduction: Gray crescent is a cortical region present in the egg of the frog that is recently…