| 释义 |
test·cross 英ˈtestˌkrɔːs, -ˌkrɒs美ˈtɛstˌkrɔs, -ˌkrɑsAHDtĕstʹkrôs', -krŏs'
基本英英近义反义例句
n.测交一种使杂种子一代与隐性类型交配以测定杂种子一代遗传型的方法过去分词testcrossed现在分词testcrossing三单testcrosses
Noun:
a cross between an organism whose genotype for a certain trait is unknown and an organism that is homozygous recessive for that trait so the unknown genotype can be determined from that of the offspring近义词 test-cross测交
用作名词From thetestcrossperformance data, selections, based on an index, were made for intermating of each of the four groups.根据测交种数据，利用指数方法进行选择，方法是对每个杂种优势群进行相互交配。 |