Answer:
Asexual
Before a cell divides, its nucleus divides. Each chromosome is copied, and each nucleus receives the same genetic material: genes, made of DNA.
As each cell divides into two, the resulting "daughter" cells are therefore exact copies of one another.
Sexual
Both male and female sex cells (sperms and eggs in animals, pollen and ovules in plants) are produced by a special cell division process which halves the number of chromosomes in each resulting cell. The chromosome separation process ensures that each sex cell has a unique combination of genes in its nucleus.
Fertilisation is also a random process and so when the nuclei fuse the resulting fertilised egg (zygote) has an individual genetic makeup.
In contrast to asexual reproduction, sexual reproduction introduces variation into offspring. This is an essential feature in order for evolution to take place.
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Explanation:
<span>A horizontal relationship is one on which all the people involved in the relationship are considered to be on the same level and there is reciprocity of actions and expectations. This is reflected in option B because if responsibility is being distributed, then a mutual level of competence is being accepted.</span>
I don’t know what you mean but ok
Genetic alterations that induce unchecked cell growth and tumor formation are the root cause of cancer.
<h3>What are the causes of cancer?</h3>
Genetic alterations that induce unchecked cell growth and tumor formation are the root cause of cancer. The fundamental causes of sporadic tumors are genomic instability and DNA damage. Genetic mutations that are inherited cause a small percentage of malignancies. The majority of malignancies are caused by environmental, behavioral, or lifestyle exposures.
Various lifestyle choices that may increase your risk of developing some adult malignancies include smoking, eating a lot of fat, and working with hazardous chemicals. However, most cancer patients are too young to have had prolonged exposure to these lifestyle risks.
<h3>Symptoms</h3>
- Fatigue.
- Lump or region of thickening that can be felt under the skin.
- Changes in weight, such as unplanned loss or growth.
- Alterations to the skin, such as yellowing, darkening, or redness, as well as unsealing wounds or modifications to moles that already exist.
- Changes in bowel or bladder habits.
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