Frameshift mutation affects codons downstream the point of mutation. The previous order of 3 nucleotide- sequences (codons) is consequently changed. This, therefore, changes the protein coded by the mRNA transcribed by the mutated DNA region. Frameshifts are mostly due to insertion or deletion mutations.
Answer:
Option A, Some people consider embryos to possess rights equal to those of fully developed human beings.
Explanation:
When stem cells are derived from embryo, the embryo dies in lieu to end of its cell development and this happens because stem cells are the only cells that have potential to develop an embryo by producing more stem cells and differentiating them into specific organs.
In most of the study, embryonic stem cells are derived from embryos that are obtained from IVF technique as an spare embryo. But this act is considered unethical as embryos have life within them and hence they also have rights equal to a fully developed human being.
Hence, option A is correct.
What are the four steps that explain how traits in a population change over time?
There are four principles at work in evolution—variation, inheritance, selection and time. These are considered the components of the evolutionary mechanism of natural selection.
<span>The ecological approach emerged as a reaction to the lab approach, which was considered sanitized and perhaps too controlled. What can happen in a lab cannot necessarily happen outside and vice versa.</span>
Answer:
Explanation:
It's a normal part of nature, and one of many ecological factors that help keep the hundreds of thousands of living plants. It also keeps animals in balance with one another.
