The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA. In this way, the genetic material of a cell is doubled before it enters mitosis or meiosis, allowing there to be enough DNA to be split into daughter cells.
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The protein encoded by the mutant allele is shorter than the one encoded by the normal allele, the protein encoded by the mutant allele could be non-functional and the mutant allele could be associated with disease. In addition, DNA and mutation can happen possibly wherever on these molecules at any time. The most severe variations take place in the useful units of DNA is the genes in which the mutated form of a gene is named a mutant allele.
Answer:
the magnetic direction of rocks along the surface of Earth and the age of rocks along the surface of Earth
Explanation:
The earth's magnetic field or geomagnetic field is believed to originate from the movement of molten iron and nickel in the outer core.
During a period in which the earth magnetic field is normal, crystallising magnetic minerals in magma records the orientation of the prevailing geomagnetic field. At other times when the field reverses and the magnetic field orientation changes, magnetic minerals in cooling magma stores this record.
To create a geomagnetic time scale, geologists can assign absolute ages to the records of these paleomagnetic anomalies which are the reversals. The rock is dated using radiometric techniques and each period of reversal is ascribed an absolute geologic age. Therefore, the magnetic direction of rocks along the surface of Earth and the age of rocks along the surface of Earth helps to build the geomagnetic time scale of the earth.
Answer: coal
Explanation: coal is formed when layers of peat are compressed by the layers of rocks above.
C...the key is that they are photosynthetic...so they produce oxygen (like plants)!
