The method is cross-pollination, achieved by utilizing parents with distinct traits.
Gregor Mendel studied pea plants and formulated the foundational principles of heredity. He coined the terms dominant and recessive to describe traits, based on his experiments. He practiced cross-pollination, which involves mating parents that exhibit different traits. For instance, he crossed a plant bearing green peas with another showcasing yellow peas (two contrasting traits) and examined the inheritance of these traits in subsequent generations.
Response:
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Answer:
1. Mutation- enhances genetic variation
2. Selection- may raise, lower, or maintain genetic variation
3. Genetic drift- diminishes genetic variation.
4. Gene flow- could either enhance or reduce genetic variation
Explanation:
1. Mutation denotes changes in an organism's DNA. The mutations lead to new adaptive traits that evolve, which increases the genetic diversity of organisms.
2. Natural selection favors organisms best suited to their environment. Thus, selection can increase, decrease, or keep variation in a population steady.
3. Genetic drift occurs due to random events altering a population's gene pool. When this phenomenon transpires, the genetic variation within that population typically decreases.
4. Gene flow involves changes to the gene pool due to immigration and emigration. This factor can thus increase or decrease genetic variation.
Answer:
Species A, B, and C share the same phylum.
Explanation:
Organisms are categorized based on a taxonomic structure that involves various ranks such as species, genus, order, and family.
This hierarchy includes:
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
Species represents the most specific taxonomic rank, while Domain indicates the broadest. Every organism within a lower rank also belongs to a higher-ranked category. For example, all organisms within the same species will also belong to the same genus, but the converse is not necessarily true.
Based on the information provided, since species A and C fall under the same order, it implies they are also classified within the same class and phylum...
Furthermore, species A and B are classified in the same phylum, thus since species C is within the same phylum as A, it indicates that all three species are in the same phylum.
