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Updated: May 25, 2026

Efficient and Rapid Isolation of Early-stage Embryos from Arabidopsis thaliana Seeds
Published on: June 7, 2013
Distant plant homologues: don't throw out the baby
John Gardiner1, Robyn Overall, Jan Marc
1The School of Biological Sciences, The University of Sydney, Sydney, NSW 2006, Australia. jgardiner@mail.usyd.edu.au
Abstract:
Plants and metazoans share many similarities in terms of conserved proteins. Antibodies have been used extensively to detect remote homologues, many of which are yet to be identified conclusively. Genome sequencing and the creation of novel sequence or structure comparison programs have assisted greatly in the identification of distant protein homologues. The continuing development of new software algorithms and the combining of bioinformatics with proteomics offer hope that remaining homologues will be soon identified.
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Some of Mendel’s crosses examined three pairs of contrasting characteristics. Such a cross is called a trihybrid cross. A trihybrid cross is a combination of three individual monohybrid crosses. For example, plant height (tall vs. short), seed shape (round vs. wrinkled), and seed color (yellow vs. green).
The F1 generation plants of a trihybrid cross are heterozygous for all three traits and produce eight gametes. Upon self-fertilization, these gametes have an equal chance to...

