Answer: A substitution mutation can be defined as a mutation in which a single nucleotide is replaced by the other. As a single nucleotide changes in this process which does not create an effect on the final protein so it is a least dangerous type of DNA mutation.
Explanation:
There are three types of substitution mutation:
1. Silent mutation: In this the replaced single base pair gets replaced by the mutated RNA sequence producing the same amino acid. If the nucleotide composition gets changed it will produce the same amino acid.
2. Missense mutation: The nucleotide composition gets changed as a result of addition of different amino acid after mutation in the protein.
3. A nonsense mutation involves the change in the stop codon. This results in non-functioning of the protein.
Answer:
The best answer to the question: The Z disc forms the end____ of a sarcomere, would be: the end border, or the point where sarcomeres join, within a muscle fiber.
Explanation:
Concretely, a Z disc is the boundary line that divides sarcomeres within a muscle fiber. They are the bordes between sarcomeres and they contain the most important molecule, actin, which forms the thin filaments essential for muscle tissue movement. This actin molecule, present along the Z discs, under the correct stimulation and circumstances, will bind to myosin and thus movement will be possible.
Answer:
biosphere
Explanation:
The biosphere represents the part of the earth where life forms are present. The atmosphere, all the water bodies, and the land together constitute the biosphere. The biosphere has many different types of ecosystems. Several biotic and abiotic components interact with each other in an ecosystem. Human beings and other species of living things together make the biotic components of an ecosystem present in the biosphere.
Hello. This question is incomplete. The full question is:
Energy and matter cycle through a beach ecosystem on the Gulf of Mexico. Identify one kind of model you can use to show the path of energy and matter through this ecosystem. Describe one benefit of using that kind of model to show those processes.
Food web; shows energy available at each trophic level for the next group of organisms
Energy pyramid; show all pathways of energy flow in an ecosystem
Food chain; shows a single pathway of energy flowing, making it easy to see which organisms are primary, secondary and tertiary consumers
Answer:
Food chain; shows a single pathway of energy flowing, making it easy to see which organisms are primary, secondary and tertiary consumers
Explanation:
The food chain represents a linear sequence of energy transfer within an environment. This transfer is carried out with a sequence of living beings that serve as food for each other and this food that promotes the transfer of energy through a single path, allowing all levels of transmission to be observed, through primary, secondary and tertiary.