Title
Embryonic Development of the First Branchial Arch: Gene Expression, Regulation and Patterning,Used
Delivery time: 8-12 business days (International)
Development of the definitive jaws in vertebrates is preceded by establishment of restricted expression patterns of signalling molecules and homeobox genes within the first arch. It has been proposed that the nested pattern of Dlx expression identified in mouse first arch is conserved in gnathostomes as a common mechanism of patterning the arch. Similar to mouse nested expression of the Dlx genes was revealed in chick, however, differences in the extent of the mesenchymal expression, as well as marked differences in the epithelial expression patterns between these two species were observed. One possibility to explain these differences in expression may be attributed to differences in the Dlx cisregulatory elements between chick and mouse. Another explanation is that differences in signalling between chick and mouse account for the differences observed in the Dlx expression patterns. Finally genes exhibiting disparate expression in these species like recently identified Lix1 may offer a further mechanism by which first arch patterning may be modulated to give species specific first arch characteristics.
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Shipping & Returns
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We ship your order within 2–3 business days for USA deliveries and 5–8 business days for international shipments. Once your package has been dispatched from our warehouse, you'll receive an email confirmation with a tracking number, allowing you to track the status of your delivery.
Returns
To facilitate a smooth return process, a Return Authorization (RA) Number is required for all returns. Returns without a valid RA number will be declined and may incur additional fees. You can request an RA number within 15 days of the original delivery date. For more details, please refer to our Return & Refund Policy page.
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Warranty
We provide a 2-year limited warranty, from the date of purchase for all our products.
If you believe you have received a defective product, or are experiencing any problems with your product, please contact us.
This warranty strictly does not cover damages that arose from negligence, misuse, wear and tear, or not in accordance with product instructions (dropping the product, etc.).
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