英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:

pangenesis    
泛生论; 机体再生说

泛生论; 机体再生说

Pangenesis \Pan*gen"e*sis\, n. [Pan- genesis.] (Biol.)
An hypothesis advanced by Darwin in explanation of heredity.
[1913 Webster]

Note: The theory rests on the assumption, that the whole
organization, in the sense of every separate atom or
unit, reproduces itself, the cells throwing off minute
granules called gemmules, which circulate freely
throughout the system and multiply by subdivision.
These gemmules collect in the reproductive organs and
products, or in buds, so that the egg or bud contains
gemmules from all parts of the parent or parents, which
in development give rise to cells in the offspring
similar to those from which they were given off in the
parent. The hypothesis also assumes that these gemmules
need not in all cases develop into cells, but may lie
dormant, and be transmitted from generation to
generation without producing a noticeable effect until
a case of atavism occurs. This is an ingenious
hypothesis, but now known to be wrong. Although now, a
hundred years later, we know that all transmitted
genetic information (other than that in plasmids) is
contained in the genome of a single cell, scientists
are still only beginning to understand the development
process.
[1913 Webster PJC]


请选择你想看的字典辞典:
单词字典翻译
Pangenesis查看 Pangenesis 在百度字典中的解释百度英翻中〔查看〕
Pangenesis查看 Pangenesis 在Google字典中的解释Google英翻中〔查看〕
Pangenesis查看 Pangenesis 在Yahoo字典中的解释Yahoo英翻中〔查看〕





安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Turn Bluetooth on or off in Windows - Microsoft Support
    Learn the step for turning Bluetooth on or off in Windows using the Settings app, quick settings, and action center
  • Fix Bluetooth disappeared in Windows - Microsoft Support
    The Bluetooth icon or toggle may be missing or appear grayed out in Settings or Quick settings if Windows cannot detect or enable the Bluetooth feature When this happens, Bluetooth options may not appear, or you may not be able to turn Bluetooth on or off This issue can occur for several reasons, including incorrect Bluetooth settings, outdated or incompatible drivers, stopped system
  • Fix Bluetooth problems in Windows - Microsoft Support
    Learn how to troubleshoot Bluetooth problems in Windows Resolve issues connecting a Bluetooth device or accessory
  • Pair a Bluetooth device in Windows - Microsoft Support
    Turn on Bluetooth from Windows 11 Settings Taskbar After checking that the Windows device supports Bluetooth, Bluetooth needs to be turned on Here's how: If Bluetooth is turned off, the tile isn't highlighted and might say Off
  • Bluetooth keeps disconnecting in Windows - Microsoft Support
    Solution 4: Restart the Bluetooth service Solution 5: Update Bluetooth drivers Try the following troubleshooting steps to resolve the issue If you are using a Windows 10 device, start by running the automated Bluetooth troubleshooter in the Get Help app It will automatically run diagnostics and attempt to fix this Bluetooth problem
  • Power settings in Windows 11 - Microsoft Support
    To adjust power and sleep settings in Windows 11, select Start > Settings > System > Power battery > Screen, sleep, hibernate timeouts Turn my screen off after: Select how long you want your device to wait before turning the screen off when you're not using your device, both when it's plugged in and when it's on battery power
  • Find Bluetooth settings in Windows - Microsoft Support
    Learn how to find and adjust additional Bluetooth settings and Bluetooth options in Windows
  • Troubleshoot Bluetooth not connecting in Windows
    If Bluetooth appears in Device Manager but you cannot pair or connect to a Bluetooth device, Windows may be experiencing a configuration, driver, or device-level issue that prevents successful communication These issues can occur when Bluetooth is turned on but the device is not in pairing mode, is out of range, has a low battery, or is experiencing driver, service, or update-related problems
  • Fix Bluetooth connected but no sound issue on Windows - Microsoft Support
    Solution 5: Turn off and turn on Bluetooth Solution 6: Install the latest Bluetooth drivers If you recently upgraded to Windows 11 or installed updates, your current Bluetooth driver may not be compatible Check for updated drivers In Device Manager, select Bluetooth, and then select the Bluetooth adapter name, which may include the word
  • Notifications and Do Not Disturb in Windows - Microsoft Support
    Summary Notifications in Windows are designed to keep you informed about important updates, messages, and alerts Whether it's a new email, a calendar reminder, or a system update, notifications help you stay on top of things without constantly checking your apps To help you manage these notifications and minimize distractions, Windows offers a feature called Do Not Disturb This feature





中文字典-英文字典  2005-2009