Answer:
Some laws limit hunting, which may explain why there are so many. Since they are not hunted by humans, more of them have the ability to grow and reproduce. They also may not be hunted if they are in an area surrounded by houses. Hunting in these areas would be dangerous for other people.
The lack of natural predators could also be a reason. If there is nothing to eat them, they will grow and continue to reproduce. This can then lead to overpopulation.
Explanation:
The option that is an example of the "ethical dilemma" of creating and destroying human embryos is option A: Some people..."believe an embryo has the same moral standing as a human being?"
<h3>What moral dilemmas do embryonic stem cells present?</h3>
The infinite differentiation potential of iPSCs, which can be used for human cloning and pose a risk for the creation of human embryos and human-animal chimeras, is the center of the current ethical debates surrounding stem cell-based therapies.
However, due to the fact that it involves the killing of human embryos, hESC research is morally and politically contentious. The controversy over abortion has a strong connection to the issue of when human existence begins in the United States.
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The correct answer is: c. An operon is a region of DNA that codes for a series of functionally related genes under the control of the same promoter.
Operons contain cluster of genes that are transcribed together into mRNA or are not expressed at all. Formed mRNA undergos splicing to create monocistronic mRNAs so that can be translated separately. Operons are more often found in prokaryotic cells but it can appear in eukaryotic cells and in viruses.
I believe it would be a fossil of a reptile but I'm not a 100% sure about it.
Answer:
A. The lytic lifecycle allows viruses to reproduce more quickly but also kills the host and forces the virus to find a new host cell.
Explanation:
The lytic lifestyle of the viruses (e.g. bacteriophage) can be described through the next steps:
- attachment and injection into the host cell (e.g.bacterial cell)
- synthesis of the early virus proteins which break down host's DNA
- virus uses host's machinery (for the replication, transcription and translation) to produce the rest of its proteins and to form new virus particles.
- host cell burst and many new virus particles are released.
During the lysogenic cycle, virus does not kill the host. It integrated its DNA into host's genome and stays dormant until conditions are optimal for reproduction.