Answer:
carbon monoxide , nitrogen oxide water vapour ozen gases etc
Answer:
25%
Explanation:
The female with brown teeth had a father with normal teeth. Since normal teeth is a recessive trait, the father would have been homozygous recessive for the trait and would have transmitted one recessive allele to the female. Therefore, the female is heterozygous dominant for brown teeth.
Let's assume that the allele for brown teeth is X^B while the one for normal teeth is X^b. The genotype of heterozygous dominant female would be X^BX^b and that of the male with normal teeth would be X^bY.
A cross between X^BX^b and X^bY gives progeny in following phenotype ratio= 1/4 daughter with brown teeth: 1/4 daughter with normal teeth: 1/4 son with brown teeth: 1/4 son with normal teeth. Therefore, the probability of having a daughter with brown teeth is = 25%
This discovery demonstrated one of the strengths of Models may be used to expect or provide an explanation for occasions is the statements as it should be describe models in technological know-how.
<h3>What is the importance of models?</h3>
Models have usually been vital in technological know-how and stay used to check hypotheses and expect information. Often they may be now no longer correct due to the fact the scientists of the models.
- Scientific modeling is likewise referred to as a systematic activity. The goal of the modeling can apprehend easier, define, quantify, visualize.
- Normally Science is a topic which can not genuinely provide an explanation for furthermore it's miles to be interpreted.
- There are one-of-a-kind sorts of gift a number of them are mathematical , graphical fashions, operational , etc.
- Scientific are growing withinside the fields of technological know-how schooling and Philosophy of schooling.
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Two factors contributed to the success of the pteridophytes: the extreme miniaturization of the gametophytic generation and an important development of the sporophytic generation (development of the tree forms).
Pteridophytes are a group of plants that peaked in the Carboniferous (-300 million years). It is the first great terrestrial plant civilization. These plants would have appeared in the Devonian -400 million years ago, perhaps from certain primitive terrestrial plants which, unlike bryophytes, would have favored the diploid generation on the haploid generation.
Particularly well adapted to terrestrial life, they have created, thanks to the development of tree forms, immense forests whose fossilization is at the origin of coal deposits.
Pteridophytes are at the origin of an evolutionary lineage based on the extreme miniaturization of gametophytic generation and an important development of sporophytic generation, leading to all tracheophytes including current flowering plants. Pteridophytes are well adapted to terrestrial life, however fertilization still requires the presence of water since male gametes are swimmers.