Watch complete video answer for “What is hybrid sterility?” of Biology Class 12th. Get FREE solutions to all questions from chapter QUESTION BANK.
Nonetheless scientific research on fertility (births) fecundity (the ability to give birth) or contraception (birth control) is mainly devoted to women and practically ignores men. Some studies on male fecundity have been carried out however. These focus on the role of men in three aspects of ...
Which of the following is not a mechanism of prezygotic isolation? a. habitat isolation b. gamete isolation c. hybrid sterility d. behavioral isolation e. temporal isolation The type of reproductive barrier that occurs when two species mate but fail to produce fertile hybrids is referred to as ...
male sterilityThe main problems about research and application of two-line hybrid rice were reviewed, including the confusional name and classification of male sterile lines, the unclear characterization of responses to photoperiod and temperature and the unsuitable site selection for seed production of ...
Here wereport on mate choice and hybrid viability experiments in a pair ofwarningly colored butter- flies, Heliconius erato and Heliconiushimera, that maintain their genetic integrity in the face ofhybridization. Hybrid sterility and inviability have been unimportantin the early stages of speciation ...
and has raised the eyebrows of scientists at the world bank and the organization that publishes the site you were exploring. The outbreak is a hybrid strain of two different forms of E. Coli that combine to create an anti-biotic resistant super bacterium that kills by causing bloody diarrhea ...
What is a negative control? What is a positive control? Why do we use controls? During an experiment, what is the purpose of a control group? Why is it important to have control for an experiment? What is the purpose of positive control in...
The most known example is the dysgenesis hybrid phenomenon, which occurs in the progeny that results from interbreeding different Drosophila strains (Kidwell et al., 1977). The most notable features observed in the dysgenic progeny include sterility, male recombination, mutations, chromosomal ...
a甘蓝型油菜波里马细胞质雄性不育与隐性细胞核雄性不育的遗传比较 Brassica napus Pori horse cytoplasm male sterility compares with the recessive cell nucleus male sterility heredity[translate] aImage file name to restore from 恢复的图像文件名字从[translate] ...
hybrid sterility h. low F2 fitness A cross betwe What is it called when two species are able to mate and produce an offspring which can mate with itself, but is unable to mate with either parent's species? Reproductive isolation is when different species live in the same area b...