Three Ways to Make Two Sides: Genetic Models of Asymmetric Nervous System Development

نویسنده

  • Alvaro Sagasti
چکیده

Many anatomical and functional features of nervous systems are asymmetric about the left-right axis. These asymmetries can exhibit either random or invariant laterality at the population level. Recent studies in fish and worms provide insight into the developmental mechanisms used to create both types of asymmetry. These studies reveal diverse and molecularly complex strategies for developing asymmetric nervous systems.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Price Transmission Analysis in Iran Chicken Market

Over the past three decades vertical price transmission analysis has been the subject of considerable attention in applied agricultural conomics. It has been argued that the existence of asymmetric price transmission generates rents for marketing and processing agents. Retail prices allegedly move faster upwards than downwards in response to farm level pricemovements. This is an important issue...

متن کامل

Redundancy Allocation Problem of a System with Three-state Components: A Genetic Algorithm (RESEARCH NOTE)

The redundancy allocation is one of the most important and useful problems in system optimization, especially in electrical and mechanical systems. The object of this problem is to maximize system reliability or availability within a minimum operation cost. Many works have been proposed in this area so far to draw the problem near to real-world situations. While in classic models the system com...

متن کامل

Anatomical parameters of cardiopulmonary system, venous blood pCO2and pO2tensions and the development of ascites syndrome in two genetic line chickens that are differing in their growth rate

The present study was designed to examine the anatomical parameters of the cardiopulmonary system, the function of venous blood gas parameters and the development of ascites incidence in two genetic line chickens. Three hundred forty day-old chickens from two pure broiler breeder lines, which were different in their growth rate and susceptibility to ascites syndrome were obtained. The relative ...

متن کامل

Stem Cells Application in Modeling of Human Genetic Diseases

The use of animal models in modeling of human genetic disease has many advantages. In some cases, however, this method may not be applicable due to some limitations, such as differences in tissue composition, anatomy and physiology of humans and animals. Isogenic human disease models are a population of cells that are selected or engineered to model a specific genetic disease, in vitro. They ar...

متن کامل

A Comparative Study of Tooth Wear, Mechanical Power Losses and Efficiency in Normal and High Contact Ratio Asymmetric Spur Gears

The surface tooth wear which occurs at the gear contact region due to inadequate contact strength of the tooth is one of the predominant modes of gear failures. Currently, higher contact ratio spur gears are increasingly used in power transmission applications such as aircraft, wind turbine, automobiles and compact tracked vehicles due to their high load carrying capacity.  In this work, the di...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:
  • Neuron

دوره 55  شماره 

صفحات  -

تاریخ انتشار 2007