A single point mutation<span> can change the whole DNA sequence. Changing one purine or pyrimidine may change the amino acid that the nucleotides code for.</span>Point mutations<span> may arise from spontaneous </span>mutations<span> that </span>occur<span> during DNA replication.</span>
The endometrium is the inner lining of the uterus. During the ovulation period, this wall thickens as it prepares the uterus for the eventual fertilization of an egg cell. It is composed of a basal layer and a functional layer, in which the latter sloughs off/sheds off during menstruation.
Therefore, it is the ENDOMETRIUM layer <span>of the uterus undergoes dramatic changes in thickness and structure during the uterine cycle responding to hormones.</span>
Answer: Carbon is one of the most important chemical, non-metallic element that is considered to be the fundamental unit, making up the organic life. Carbon is present in almost all the living beings existing on earth.
Carbon plays a significant role in the carbon cycle. It transfers from plants to the animals or organisms as one consumes the plants, vegetables that are around us and further released into the atmosphere from the bodies of the living creatures during exhalation. This continuous transformation of carbon from one place to another is regarded as the carbon cycle.
It is abundant and can easily react with various elements.
