Pii: S0923-2508(02)01344-x

نویسنده

  • James A. Shapiro
چکیده

Repetitive DNA elements are major organizational components of the genome inolved in replication, in transmission to daughter cells, and controlling expression of genomic coding sequences. Repetitive elements format the genome system architecture characteristic of each taxonomic group. Appreciating the functional significance of repetitive DNA provides new concepts of genome organization and genome reorganization in evolution.  2002 Éditions scientifiques et médicales Elsevier SAS. All rights reserved.

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

Kin selection

How can individuals calculate relatedness? They generally don’t need to, any more than a bird needs to calculate aerodynamic forces to fly. If, under certain conditions, performing a behavior satisfies Hamilton’s rule, then the action is favored. The triggering conditions may include cues to relatedness, which are usually based on social experience. A bee, for example, learns the smell of her b...

متن کامل

Shape-based image retrieval using generic Fourier descriptor

Shape description is one of the key parts of image content description for image retrieval. Most of existing shape descriptors are usually either application dependent or non-robust, making them undesirable for generic shape description. In this paper, a generic Fourier descriptor (GFD) is proposed to overcome the drawbacks of existing shape representation techniques. The proposed shape descrip...

متن کامل

A new subsampling-based predictive vector quantization for image coding

Improving coding efficiency for vector quantization (VQ), e.g., reducing bit-rate attainable and increasing encoding speed, has attracted intensive attention. A new image VQ scheme of subsampling-based predictive vector quantization (SB-PVQ) is introduced for this aim, which fully exploits the neighboring-pixel smoothness in both intra-blocks and the boundary areas of inter-blocks. Firstly, all...

متن کامل

An interactive authoring system for video object segmentation and annotation

An interactive authoring system is proposed for semi-automatic video object (VO) segmentation and annotation. This system features a new contour interpolation algorithm, which enables the user to define the contour of a VO on multiple frames while the computer interpolates the missing contours of this object on every frame automatically. Typical active contour (snake) model is adapted and the c...

متن کامل

Facial animation parameters extraction and expression recognition using Hidden Markov Models

∗ This work has been supported by the European project InterFace and TIC2001-0996 of the Spanish Government The video analysis system described in this paper aims at facial expression recognition consistent with the MPEG4 standardized parameters for facial animation, FAP. For this reason, two levels of analysis are necessary: low level analysis to extract the MPEG4 compliant parameters and high...

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:

دوره   شماره 

صفحات  -

تاریخ انتشار 2002