RDNA (Radeon DNA[2][3]) is a graphics processing unit (GPU) microarchitecture and accompanying instruction set architecture developed by AMD. It is the successor to their Graphics Core Next (GCN) microarchitecture/instruction set.

在大型的rDNA序列，rDNA的 重复单元 （英语：Repeat unit） 之间的多态性非常低，这表明rDNA的串联阵列通过 协同进化 演变 [1]。 在对9种果蝇的5S串联重复序列区域彼此进行比较后得出的结果表明，因这一区域 插入 和 删除 较为频繁，在 5'端 以及 3'端 两侧发现有 保守序列 [2]。 他们可能在 DNA复制 或通过 基因转换 的过程中发生新合成链的 滑移 （英语：Replication slippage）[2]。 ITS序列因為變異不影響核糖體的生成，所以远端物种如人类和青蛙之间进 …

Ribosomal DNA is widely used for phylogenetic studies. [2][3] The ribosomal DNA includes all genes coding for the non-coding structural ribosomal RNA molecules. Across all domains of life, these are the structural sequences of the small subunit (16S or 18S rRNA) and the large subunit (23S or 28S rRNA).

L1 cache 剩下的就是最大头：Compute Unit（简称CU），类似于ARM Execute Engine，不同的是这里的CU内部是包含Texture处理部分的。 这里也是RDNA架构的最大升级之处，即两个CU合并在一起共享了某些资源，所以叫 Dual CU（简称：DCU）。 每个CU里面是2个SIMD32，所以总的算 …

These units can be described as follows: 1) highly degraded, but near full length, rDNA units, including both 45S and Intergenic Spacer (IGS), can be found at multiple sites in the human genome on chromosomes without rDNA arrays; 2) these rDNA sequences have a propensity for being centromere proximal; and 3) sequence at all human functional ...

2021年1月1日 · The organization of an rDNA unit showing 18S, 5.8S, and 25-28S rRNA genes and their transcribed and nontranscribed segments shown in the top panel. rRNA undergoes multiple RNA-mediated RNA modifications (lower panels) to generate mature rRNAs with the help of different classes of factors including small nucleolar ribonuclear protein particles ...

2023年2月2日 · In this Review, we discuss how cells stably produce the substantial amount of rRNA through rRNA gene amplification and specialized transcription. We focus on the recent developments in research of...

2020年5月4日 · We identify active rDNA chromatin units exhibiting uniformly ring-shaped conformations with diameters of ~240 nm in mouse and ~170 nm in human fibroblasts, consistent with rDNA looping. The...

2025年2月28日 · AMD's RDNA 4 architecture and RX 9000-series GPUs launch March 6, beginning with the mainstream to high-end 9070 and 9070 XT. The new chips come with significantly improved ray tracing and AI ...

2024年7月24日 · The genes encoding ribosomal RNA are highly conserved across life and in almost all eukaryotes are present in large tandem repeat arrays called the rDNA. rDNA repeat unit size is conserved across most eukaryotes, but has expanded dramatically in mammals, principally through expansion of the intergen …