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A translocation tester set in pearl millet
J L Minocha1, D S Brar, R S Saini
1Department of Genetics, Punjab Agricultural University, Ludhiana, India.
Abstract:
Sixteen translocation stocks developed in pearl millet, Pennisetum typhoides (Burm.) S.&H. (2 n = 14) were inter-crossed and the meiotic configurations of f1's analysed. A translocation tester set comprising five translocation stocks, each involving two non-homologous chromosomes has been developed.
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Test Cross
Trihybrid Crosses
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...