请输入您要查询的英文单词:

 

单词 gene conversion
释义

gene conversion

noun

: a genetic process that involves nonreciprocal meiotic recombination in heterozygotes in which a mismatched DNA sequence from one heteroduplex DNA strand is replaced with a sequence complementary to the other strand resulting in aberrant gametic ratios (such as 3:1) and that is observed especially in ascomycetous fungi

Example Sentences

Recent Examples on the Web Their new experiments suggest that embryos borrow DNA templates from themselves to make repairs—a process called gene conversion—up to 40 percent of the time. Megan Molteni, Wired, 29 Oct. 2020

Word History

First Known Use

1955, in the meaning defined above

Medical Definition

gene conversion

noun

: a genetic process that is sometimes associated with meiotic recombination in heterozygotes if heteroduplex DNA is formed, that involves the selective enzymatic excision of a mismatched DNA sequence from one heteroduplex strand and replacement with a nucleotide sequence complementary to the other strand so that the two DNA strands are genetically identical, and that results in aberrant gametic ratios (as 3:1 or 1:3 instead of 2:2)
随便看

 

英语词典包含469781条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/12/23 13:07:17