The planets<span> in our Solar System </span>formed<span> from the same spinning disc of dust that </span>formed<span> the Sun. This disc was composed mainly of hydrogen and helium.
Hope this helped! =)</span>
Answer:
XYY, spermatogenesis.
Explanation:
Non disjunction may be defined as the phenomena in which the sister chromatids are unable to separate during the cell division. Non disjunction can occur in both meiosis and mitosis.
The determination of non disjunction is not possible. But the XYY condition in an individual might occur when the homologous chromosomes of Y are unable to separate during the process of spermatogenesis as Y chromosome is present in males only.
Thus, the correct answer is XYY and spermatogenesis
Answer:
In heterozygotic individuals, the gene for sickle cell anemia is protective against malaria.
Explanation:
Through the same mechanism that the mutation associated with sickle cell anemia produces the disease (altered hemoglobin structure), having a single copy of the mutation (that is, being heterozygotic) provides protection against malaria. This is believed to be due to the altered structure causing difficulty for the malaria parasite when it attempts to enter red blood cells as part of its life cycle.
Today, there are medications to successfully treat malaria, but it still killed 627,000 people in 2020. This represents a significant evolutionary pressure for genes that would prevent serious malarial illnesses. As malaria was and still is common in African regions, the result was a higher prevalence of sickle cell anemia in those of African descent.
Answer:
Take a message to be returned as soon as possible.
Explanation:
Okay, in the question above we are given that someone or Physician because of an urgent question that came up has to make a phone call to another physician in another location but unfortunately the physician that the person called was busy and in the middle of a patient exam. The assistant of the physician that was called does should never interrupt his or her boss who is examining a patient at that moment but the assistant can just tell the physician that called that he or she should leave a message instead and he or she(that is the assistant) will relay the message to the office physician as soon as possible. That's a normal ethics of his or her work and the patient is important.
<span>The impulsive mechanism described by Freud is known as the Id. According Freud, the id is the unconscious part of the human mind that wanted to be satisfaction that holds hidden instincts and desire for action. He said that for some people this is not suppressed and are controlled by their Id. This shows their negative behavior without any sense of undertanding right decisions. </span>