Conservation of molecular mechanisms underlying early head patterning in Drosophila and v

This is the abstract for this paper. We have had an unforeseen circumstance in our research team, but need to deliver on this literature review. The paper is a review article comparing the mechanisms of head development in vertebrates and invertebrates.


Don't use plagiarized sources. Get Your Custom Essay on
Conservation of molecular mechanisms underlying early head patterning in Drosophila and v
Get an essay WRITTEN FOR YOU, Plagiarism free, and by an EXPERT!
Order Essay

One of the first cell fate decisions made during animal development is to set up anterior/posterior (AP) and dorsal/ventral (DV) axes, followed closely by segmentation, specification and differentiation. Axis specification in Drosophila embryos is regulated by maternal factors. Consequently, these factors activate a series of downstream gap and pair rule genes that lead to the formation of anterior and posterior segments. Precise spatiotemporal organization of these genes is critical for the proper formation of a segmented body plan, which is a defining feature of all insects. Segmentation is observed across different animal phyla, such as vertebrates. Although vertebrate and insect segmentation evolved independently, the organizational logic is conserved. For example while posterior segments are specified by Hox genes, anterior head and brain development is Hox-independent in Drosophila and known vertebrates. Drosophila anterior patterning is regulated by head gap genes such as the critical and early zygotic genes otd, btd and ems. Homologs of these genes are expressed early in vertebrate embryos in the mid-hindbrain and the forebrain domains. In this review we provide a comparative overview of early head development in Drosophila and mouse and zebrafish, whose last common ancestor lived more than 700 MYA. We focus primarily on the genes otd/otx, ems/emx, and btd/sp1/bts1, and their conserved and divergent roles during early anterior specification.

Homework Market
Order a unique copy of this paper
(550 words)

Approximate price: $22

Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Since all our papers are written from scratch, the papers we submit are plagiarism free and we strictly adhere to lecturer’s instructions. Our writers are highly qualified from all over the world and include graduates and professors from most of the largest and known universities in the world. Once you have assigned us your assignment, we select the most qualified and reliable writer to handle your assignment.

Money-back guarantee

Unlike other writing companies, we encourage clients to draw back their money at any stage of the writing process if they experience any uncertainties with the quality of generated content. However, you will hardly have to make this decision because of our business approach that suits your needs.

Zero-plagiarism guarantee

We have an advanced plagiarism-detection system that flags any work that fails to meet the required academic expectations. Our company thrives in honesty, and as such, you will be guaranteed to achieve a paper that meets your expectations.

Timely delivery of urgent papers

At we have online agents that you can chat with to have your assignment taken care of with the little remaining time. Also, we have professional academic writers who will work on your assignment providing you with a high-quality paper at the same time. We can take care of your urgent assignments in less than 5 hours.

Privacy policy

We uphold confidentiality and privacy through our interactions with clients, an aspect that has enhanced our relationship with prospective customers seeking for assignment help. We do not disclose your information with third-parties; neither do we share your work with any other person apart from you.

We do not offer pre-written essays

We do not resell previously-done tasks delivered to other clients. When we deliver orders to our clients, we safeguard their privacy and confidentiality by ensuring the third party does not access the work. By writing the papers from scratch, we have managed to maintain a certain level of originality, which defines our business model. Our qualified editors proofread all submitted work to eliminate mistakes that can interfere with the credibility of the assignment.

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
The price is based on these factors:
Academic level
Number of pages