What Is Germ Plasm?
نویسنده
چکیده
Special Articles: Normal Human Stromata as Antigens for Complement Fixation in the Sera of Patients with Relapsing livax Malaria: DR. MICHAEL HEIDELBERGER and MANFRED M. MAYER. Induction of Leukemia in Mice: D. ARTHUR KIRSCHBAUM and DR. HENRY S. KAPLAN. The Neutralization in Vitro of Avian Pneumoencephalitis Virus by Newcastle Disease Immune Serum: D. J. R. BEACH. The Isolation of the St. Louis Encephalitis Virus from Chicken Mites in Nature: DR. MARGARET G. SMITH, RUSSELL J. BLATTNER and DR. FLORENCE M. HEYS ............................................ 359 Scientific Apparatus and Laboratory Methods: An Easily Constructed Hepp Osmometer: DR. WARRENS. REHM ............................................. 364 Science News ........................................... 10
منابع مشابه
Evolution of the germ line-soma relationship in vertebrate embryos.
The germ line and soma together maintain genetic lineages from generation to generation: the germ line passes genetic information between generations; the soma is the vehicle for germ line transmission, and is shaped by natural selection. The germ line and somatic lineages arise simultaneously in early embryos, but how their development is related depends on how primordial germ cells (PGC) are ...
متن کاملTransport of Germ Plasm on Astral Microtubules Directs Germ Cell Development in Drosophila
BACKGROUND In many organisms, germ cells are segregated from the soma through the inheritance of the specialized germ plasm, which contains mRNAs and proteins that specify germ cell fate and promote germline development. Whereas germ plasm assembly has been well characterized, mechanisms mediating germ plasm inheritance are poorly understood. In the Drosophila embryo, germ plasm is anchored to ...
متن کاملGerm Plasm: Protein Degradation in the Soma
Germ plasm is a specialized cytoplasm that is physically segregated to the germline cells during early embryogenesis. Recent results suggest that, in Caenorhabditis elegans, germ plasm is also prevented from accumulating in somatic lineages by a ubiquitin ligase that targets germ plasm proteins for degradation.
متن کاملBucky Ball Organizes Germ Plasm Assembly in Zebrafish
In many animals, gamete formation during embryogenesis is specified by maternal cytoplasmic determinants termed germ plasm. During oogenesis, germ plasm forms a distinct cellular structure such as pole plasm in Drosophila or the Balbiani body, an aggregate of organelles also found in mammals. However, in vertebrates, the key regulators of germ plasm assembly are largely unknown. Here, we show t...
متن کاملThe Germ-Plasm: a Theory of Heredity (1893), by August Weismann
Friedrich Leopold August Weismann [3] published Das Keimplasma: eine Theorie der Vererbung (The Germ-Plasm: a Theory of Heredity [2], hereafter The Germ-Plasm) while working at the University of Freiburg [4] in Freiburg, Germany in 1892. William N. Parker, a professor in the University College [5] of South Wales and Monmouthshire in Cardiff, UK, translated The Germ-Plasm into English in 1893. I...
متن کاملXdazl is an RNA component of Xenopus germ plasm and encodes an RNA-binding protein that can act as a functional homologue of Drosophila boule. boule is required
In most sexually reproducing organisms, the gametes are derived from a precursor stem cell population, the primordial germ cells (PGCs). These cells originate extragonadally early in development and migrate through somatic tissues to reach the developing gonads. Once ensheathed by somatic gonad cells, PGCs divide and differentiate into definitive gametes. Discovering how the PGCs are initially ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Science
دوره 100 2599 شماره
صفحات -
تاریخ انتشار 1944