相关实验视频

Updated: Jun 20, 2025

Assessing Intertidal Populations of the Invasive European Green Crab
06:48

Assessing Intertidal Populations of the Invasive European Green Crab

Published on: September 16, 2020

6.0K

北美的鱼港口是Nudiviridae的各种成员

Cheyenne E Stratton1, Lindsey S Reisinger1, Donald C Behringer2

  • 1Fisheries and Aquatic Sciences, University of Florida, Gainesville, FL, 32653, USA.

Virology
|July 19, 2024
PubMed
概括

发现了三种感染北美的新型努迪病毒,这标志着这些病毒在中的第一个基因组确认. 这一发现扩大了我们对病毒及其潜在生态影响的理解.

关键词:
甲类的甲类动物疾病 疾病 疾病基因组学就是基因组学.莱法维拉莱斯 (Lefavirales) 是一个裸体病毒是什么?病毒 病毒 病毒

更多相关视频

Recording Behavioral Responses to Reflection in Crayfish11:30

Recording Behavioral Responses to Reflection in Crayfish

Published on: May 14, 2010

10.7K
Historical View and Physiology Demonstration at the NMJ of the Crayfish Opener Muscle11:56

Historical View and Physiology Demonstration at the NMJ of the Crayfish Opener Muscle

Published on: November 9, 2009

21.4K

相关概念视频

Diversity of Antigen Receptors01:28

Diversity of Antigen Receptors

Antigen receptors are essential components of the immune system crucial in defending the body against foreign invaders. These receptors are present on the surface of B and T cells, enabling them to recognize antigens and mount an appropriate immune response.
Before encountering any antigen, lymphocytes express these receptors. On B cells, the antigen receptor is a membrane-bound antibody molecule called BCR; on T cells, it is a T cell receptor or TCR. B and T cell receptors are composed of two...
562
Cell Diversity01:13

Cell Diversity

The concept of a cell started with microscopic observations of dead cork tissue by Robert Hooke in 1665. Hooke coined the term "cell" based on the resemblance of the small subdivisions in the cork to the rooms that monks inhabited, called cells. About ten years later, Antonie van Leeuwenhoek became the first person to observe the living and moving cells under a microscope. In the century that followed, the theory that cells represented the basic unit of life developed.
Multicellular...
3.1K
Genetics of Speciation02:16

Genetics of Speciation

Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
19.2K
CRISPR and crRNAs02:53

CRISPR and crRNAs

Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
16.9K
Multi-species Conserved Sequences02:51

Multi-species Conserved Sequences

Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale  studies have provided new insights into the evolutionary relationship between organisms.
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
3.9K
Cis-regulatory Sequences02:02

Cis-regulatory Sequences

Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
9.8K