If a fertilized Drosophila egg is punctured at the anterior end and a small amount of cytoplasm is allowed to leak out, what will be the most likely effect on the development of the fly embryo?

Q: If a mother snail is heterozygous, Dd, which gene products will the egg cell receive?

A: Sir Gregor Mendel was a priest and a teacher who did the famous hybridization experiment on garden…

Q: How long is Drosophila melanogaster life cycle?

A: The Drosophila melanogaster is the widely used model organism in the field of genetics and…

Q: Where are Drosophila melanogaster found?

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

Q: When an embryo is homozygous mutant for the gap gene Kr, the fourth and fifth stripes of the…

A: Segmentation in the Drosophila embryo is regulated by pair-rule genes and gap genes.

Q: In flies, the gap gene kruppel is expressed in a broad band in the middle of the embryo with giant…

A: Segmentation in Drosophila is a result of hierarchical and location specific expression of genes.…

Q: A researcher performs a tissue transplant experiment with an early Drosophila embryo. The researcher…

A: One of the most crucial elements in ensuring the success of any organ transplantation is ensuring…

Q: Describe the formation steps of the primary axis that first occurs during development in Drosophila…

A: Embryos produce different types of cells and functional tissues and organs are formed by these cells…

Q: What terms can be used to describe a fruit fly that has a total of 7 chromosomes because it is…

A: Chromosomes are the condensed form of DNA (deoxyribonucleic acid) along with histone proteins. These…

Q: <pression of a homeotic gene in the wrong tissue in Drosophila results in the development of an…

A: INTRODUCTION Homeotic gene, any of a group of genes that control the pattern of body formation…

Q: Woolly mammoths have been extinct for about 4,000 years, but we often find their well-preserved…

A: Using advanced molecular biology techniques, the scientists are making this challenge a reality that…

Q: What would be the most likely effect on development of puncturing the posterior end of a Drosophila…

A: Egg polarity are the earliest activated genes, which decide the formation of main body axis, such as…

Q: what is the Mechanism of DNA Replication in DrosophilaChromosomes?

A: DNA replication is the process in which DNA makes a copy of itself by copying a double-stranded DNA…

Q: Which of the following statement(s) is/are true with regard to positional information in Drosophila?…

A: Positional information is a signal which is received by each and every cell of the body in an…

Q: Discuss the role of homeotic genes in development. Explain what happens to the phenotype of a fruit…

A: The homeotic genes are the group of genes that regulate the formation of the anatomical structures…

Q: Who discovered Drosophila melanogaster?

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

Q: Let's say that an experiment resulted in the production of several unattached kinetochores. What…

A: It includes cell division, replication and growth. All these processes should be carried out in a…

Q: In insect embryonic development, the fertilized egg nucleus divides repeatedly giving rise to…

A: Embryonic development in insects The period of development of embryo starts at fertilization and at…

Q: Explain how an understanding of cell lineages in Caenorhabditis elegans aids in the identification…

A: Step 1 Caenorhabditis elegans is a free-living nematode that has two sexual forms a self-fertilizing…

Q: Name three possible factors contributing to early asymmetries in a developing embryo (i.e. what are…

A: FACTORS CONTRIBUTING TO EARLY ASYMMETRIES IN A DEVELOPING EMBRYO: Embryonic morphogenesis occurs…

Q: Cleavage divides the eggs of vertebrates and many other animals into a cluster of separate cells. By…

A: An embryo in development is an excellent example of intricate biological self-organization and…

Q: What terms can be used to describe a fruit fly that has a total of 7 chromosomes because it is…

A: Drosophila melanogaster It is a fruit fly.

Q: Describe the relationship between homeotic genes in Drosophila and in mice.

A: Homeotic genes are the regulatory genes that play an important role in the regulation of 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: You have identified a Drosophila gene that is expressed exclusively in the odd-numbered "stripes" in…

A: A loss-of-function mutation is a type of genetic mutation that disrupts the normal function of a…

Q: Drosophila melanogaster has which four linkage groups?

A: The tendency of the genes to locate on the same chromosome, to stay together in the hereditary…

Q: Could Bicoid be a morphogen thatdetermines the anterior end of a fruit fly?

A: A morphogen is a protein whose concentration gradient affects the developmental fate of the…

Q: Gradients of morphogens can be preestablished in the oocyte. Also, later in development, morphogens…

A: A substance whose non-uniform distribution governs the tissue development in the pattern formation…

Q: Let's say that an experiment had no disruption to kinetochores and you are able to inactivate the…

A: MPF promotes the entrance into mitosis (the M phase) from the G2 phase by phosphorylating multiple…