testcross
/ˈtɛstˌkɹɒs/
testcross noun: the breeding of an individual with a phenotypically recessive individual, in order to determine the zygosity of the former by analysing proportions of offspring phenotypes.
Noun
testcross (plural testcrosses)
- The breeding of an individual with a phenotypically recessive individual, in order to determine the zygosity of the former by analysing proportions of offspring phenotypes.
- The inbreds of groups 3 and 4 have a distinct difference in plant height, except for a few selections, presumably because of some difference in selection pressure at low- and high-stand densities. Group means for testcross performance showed more progress in group 4 than in group 3 because of a...1967, W. A. Russell, A. H. Teich, Selection in Zea Mays L. by Inbred Line Appearance and Testcross Performance in Low and High Plant Densities
- You could determine its genotype by performing a testcross. If the plant were homozygous (TT), a testcross would produce all tall progeny (TT × tt → all Tt); if the plant were heterozygous (Tt), half of the progeny would be tall and half would be short (Tt × tt → 1/2 Tt and 1/2 tt). When a...2012, Benjamin A. Pierce, Genetics: A Conceptual Approach, Macmillan, →ISBN, page 55
Verb
testcross (third-person singular simple present testcrosses, present participle testcrossing, simple past and past participle testcrossed)
- To breed an individual in this manner.
Examples of testcross in a sentence
- Group means for testcross performance showed more progress in group 4 than in group 3 because of a difference in the number of low-yielding genotypes in the two groups.1967, W. A. Russell, A. H. Teich, Selection in Zea Mays L. by Inbred Line Appearance and Testcross Performance in Low and High Plant...
- You could determine its genotype by performing a testcross.2012, Benjamin A. Pierce, Genetics: A Conceptual Approach, Macmillan, →ISBN, page 55:
Forms of testcross
| Noun | |
|---|---|
| plural | testcrosses |
| alternative form | test cross |
| Verb | |
| third-person singular present | testcrosses |
| present participle | testcrossing |
| past participle | testcrossed |
| past | testcrossed |
Origin of testcross
From test + cross.
Questions about testcross
- What does testcross mean?
- Testcross means the breeding of an individual with a phenotypically recessive individual, in order to determine the zygosity of the former by analysing proportions of offspring phenotypes.
- How do you use testcross in a sentence?
- Group means for testcross performance showed more progress in group 4 than in group 3 because of a difference in the number of low-yielding genotypes in the two groups.
- What part of speech is testcross?
- Testcross can be a noun or a verb.
- How do you pronounce testcross?
- Testcross is pronounced /ˈtɛstˌkɹɒs/.
- What is the plural of testcross?
- The plural of testcross is testcrosses.
Words near testcross in the dictionary
Source and license
Adapted from Wiktionary: testcross (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Cite this entry: “testcross.” Word.ws, https://word.ws/testcross. Based on Wiktionary, CC BY-SA 4.0.