The geneticist who discovered the white eye mutation in drosophila and helped establish that genes are carried on chromosomes was Thomas Hunt Morgan.
Thomas Hunt Morgan One landmark of modern genetics can be dated to January 1910, when Thomas Hunt Morgan discovered a male of Drosophila melanogaster with white eyes.
What is genetics?
- The study of genes and heredity.
- Heredity is the passing of genetic information and traits from parents to offspring.
- Genetics is the study of genes and tries to explain what they are and how they work.
- children usually look like their parents because they have inherited their parent's genes.
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The term that is being described above is SETTLING POINT. This term has been adopted by some researchers which refers to how our weight thermostats are rather adaptable and are affected by biological factors in the environment. This is based on the setting-point hypothesis.
Explanation:
the top predator is removed from the delicate balance of any particular ecosystem, there may be disastrous effects for the other plants and animals that inhabit the environment.
When a top predator is removed from an ecosystem, a series knock-on effects are felt throughout all the levels in a food web, as each level is regulated by the one above it. This is known as a trophic cascade. The results of these trophic cascades can lead to an ecosystem being completely transformed. The impacts trickle down through each level, upsetting the ecological balance by altering numbers of different animal species, until the effects are finally felt by the vegetation
When a top predator is no longer present, populations of their herbivorous prey begin to boom. Without a top predator to regulate their numbers, these animals put a great deal of pressure on the existing vegetation that they require for food and can destroy large amounts of plant life, such as grasses and trees. This then causes further problems, such as soil erosion and loss of animal habitat. Eventually, humans are also impacted due to the resulting lack of soil fertility and clean water that depend on these plants.
Another problem involving the loss of vegetation is the competition that is created between herbivorous species. Competition between species for the remaining plant life is high and weaker species lose out to stronger ones, leading to the potential loss of weaker animals, as well as plant species. Increased competition, therefore, leads to a lack of biodiversity. In contrast, top predators often have varied diets, which means they can pursue a new food source if one is running low, preventing the first source from being eradicated completely. This is one of the ways that top predators are able to maintain biodiversity and the balance of an ecosystem.
The presence of a top predator also helps to maintain balance in an ecosystem by influencing the behaviour and movements of its prey through the fear of being caught. Animals that are prey to a top predator will move around in order to avoid it. This prevents plants and animals in any particular area of an ecosystem from being over-consumed, preserving food sources and habitats. In the absence of top predators, this regulation disappears, allowing certain areas of vegetation to be destroyed completely.
Self-pollination occurs when the pollen from anther is deposited on the stigma of the same flower. Because cross-pollination allows for more genetic diversity, plants have developed many ways to avoid self-pollination.
The correct answer is statement c.
Explanation:
The procedure of the development of bones from hyaline cartilage is known as endochondral ossification. Endochondral ossification transforms hyaline cartilage into true bones, that is, hyaline cartilage functions as a template for the formation o