Heterosis



[het-uh-roh-sis] /ˌhɛt əˈroʊ sɪs/

noun, Genetics.
1.
the increase in growth, size, fecundity, function, yield, or other characters in hybrids over those of the parents.
/ˌhɛtəˈrəʊsɪs/
noun
1.
(biology) another name for hybrid vigour

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  • Heterosporous

    [het-uh-ros-puh-ruh s, het-er-uh-spawr-uh s, -spohr-] /ˌhɛt əˈrɒs pə rəs, ˌhɛt ər əˈspɔr əs, -ˈspoʊr-/ adjective, Botany. 1. having more than one kind of spore. /ˌhɛtəˈrɒspərəs/ adjective 1. (of seed plants and some ferns and club mosses) producing megaspores and microspores Compare homosporous heterosporous (hět’ər-ə-spôr’əs, hět’ə-rŏs’pər-əs) Producing two types of spores differing in size and sex, […]



  • Heterospory

    [het-uh-ros-puh-ree] /ˌhɛt əˈrɒs pə ri/ noun, Botany. 1. the production of both microspores and megaspores.

  • Heterostracan

    [het-uh-ros-truh-kuh n] /ˌhɛt əˈrɒs trə kən/ noun, Paleontology. 1. any of several ostracoderms of the order Heterostraci, from the Silurian and Devonian Periods, having the anterior part of the body enclosed in bony plates.



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