Mutations induced in Drosophila during space flight.

نویسندگان
چکیده

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

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Mutations affecting the indirect flight muscles of Drosophila melanogaster.

The development of the indirect flight muscles of Drosophila melanogaster was studied by analysing mutations that cause flightlessness. Twenty-five mutations on the X-chromosome and two on the third chromosome were examined. The X-chromosomal mutations form ten complementation units. The ten loci were assigned preliminary map positions by meiotic recombination and deficiencies and duplications....

متن کامل

Mosaic mutations induced in Drosophila by ethylenimine.

irst well defined case of the mutagenic effectiveness of chemicals was Tyet:ied for mustard gas treatment of Drosophila by AUERBACH and ROBSON ( 1946). Chemical mutagenesis studies have since been extended to a number of biological systems, including bacteria, fungi and higher organisms. AUERBACH (1965) has discussed the development of chemical mutagenesis in the last 20 years. The application ...

متن کامل

Radiation Induced Reverse Mutations in Drosophila Melanogaster.

There can be little doubt that within the limits of current operational criteria spontaneous reverse (back) mutations have been recorded in Drosophila and other organisms.' Doubt has been raised whether the back-mutation frequency can be significantly increased following X-ray irradiation, despite early reports that it can.2 The relatively high spontaneous back-mutation frequencies of two pseud...

متن کامل

Spatial Orientation during Locomotion following Space Flight

To investigate changes in spatial orientation ability and walking performance following space flight, 7 astronaut subjects were asked preand post-flight to perform a goal directed locomotion paradigm which consisted of walking a triangular path with and without vision. This new paradigm, involving inputs from different sensory systems, allows quantification of several critical parameters, like ...

متن کامل

Calcium and bone metabolism during space flight.

Weightlessness induces bone loss. Understanding the nature of this loss and developing means to counteract it are significant challenges to potential human exploration missions. This article reviews the existing information from studies of bone and calcium metabolism conducted during space flight. It also highlights areas where nutrition may play a specific role in this bone loss, and where cou...

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

ژورنال

عنوان ژورنال: Biological Sciences in Space

سال: 1997

ISSN: 0914-9201,1349-967X

DOI: 10.2187/bss.11.346