Regulation of gene expression using siRNAs is found in: a. prokaryotes only b. eukaryotes only c. prokaryotes and eukaryotes

Answer;

both dominant and a mutation

Explanation;

• Pedigree charts shows inheritance of a certain trait over generations. A pedigree can therefore track an inherited trait through several generation.
• A dominant trait is an inherited trait that appears in an offspring if it is obtained from a parent through a dominant allele. Such a trait is seen when heterozygous genotype is present. If a trait is dominant, then its appearance on a pedigree chart will be such that it appears in every single generation.
• Mutation refers to sudden spontaneous changes that occurs randomly in the genome of an organism. Mutations may also be observed in a pedigree chart.

Another name for rooster is a hen.

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in chloroplast

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Answer:

The cell membrane help to maintaining homeostasis by regulating the flow of substances through it and by recognizing potentially harmful agents to the cell.

Explanation:

Cellular membrane is constituted by a lipidic bilayer, whose characteristics allow it to behave as a semi-permeable membrane to the passage of substances.

The selective permeability of the membrane makes it possible to regulate the passage of water, molecules and ions through it into the cell and from there into the extracellular space, a characteristic that allows the maintenance of homeostasis.

Additionally, the cell surface can identify foreign and potentially harmful agents, which can affect the internal balance, preventing in most cases their passage into the cell.  

Final answer:

The cell membrane maintains homeostasis through its selectively permeable nature which controls the transport of substances in and out of the cell. The fluidity and flexibility of the cell membrane is crucial in this process. In addition, it provides cell identification and controls interactions with the environment.

Explanation:

The cell membrane plays a crucial role in maintaining homeostasis by controlling the content of the cell. It does this by being selectively permeable, which means it allows only certain molecules to pass through. Transport of materials such as water, oxygen, nutrients, and waste products in and out of the cell is managed by the membrane transport mechanisms.

The cell membrane's fluidity aids this process, enabling proteins to move to areas where they are needed. Furthermore, it is flexible enough to let cells like red and white blood cells change shape as they navigate through narrow capillaries.

Moreover, the cell membrane is responsible for defining the cell's borders and managing its interaction with the environment, including taking in substances, excluding others, and excreting in controlled quantities. It also carries markers that allow cells to recognize each other, a crucial ability for tissue and organ formation, and immune response.

Learn more about cell membrane here:

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A renewablesource of energy is defined as the energy obtained from the renewable source that is replenished naturally.

All of the following are sources of renewable energy exceptnatural gas energy.

Renewable energy can be explained as:

• Renewable energy is obtained from renewable sources like sun, biomass from plants, wind, geothermal, and hydroelectricenergy.

• Natural gas is a naturally occurring gas that is a non-renewable source of energy because it cannot be replenished over time.

Thus, the correct answer is Option C.

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