In the outbreak of malaria, the frequency of the recessive allele for the HbS gene will increase. The correct option is A.
<h3>What is the HbS gene?</h3>
HbS is a beta-globin gene known as sickle hemoglobin.
It causes sickle cell disease in humans.
The disease is expressed by two HbS variants or one HbS variant or one another beta-globin gene.
Malaria is caused by the plasmodium parasite, which is present in the saliva of the mosquito.
Thus, the correct option is A, the frequency will increase.
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Answer;
B. The offsprings will inherit one gene from each parent.
Explanation;
F1 (first filial) generation are the offsprings from the cross between the parents. In this case from Yellow seeds (YY) and green seeds (yy); the yellow seeds are dominant over the green seeds.
After crossing; each F1 generation will contain a genotype, Yy,-heterozygous, which means the phenotype will be yellow seeds since it is dominant over the green seeds. Each offsprings is formed by obtaining one allele from each parent; that is Y allele from yellow seed and y from the green seed.
Plants<span> make </span>food<span> in </span>their<span> leaves. The leaves contain a pigment called chlorophyll, which colors the leaves green. Chlorophyll can make </span>food<span> the </span>plant<span> can use from carbon dioxide, water, nutrients, and energy from sunlight. This process is called photosynthesis.</span>
The respiratory structure that contracts and relaxes to allow air to flow in and out of the lungs is option(c) i.e, the diaphragm.
<h3>What is
the diaphragm?</h3>
The diaphragm, a delicate skeletal muscle that separates the chest from the belly, is located at the base of the chest. When you breathe in, it flattens and shrinks. As a result, the lungs experience a vacuum effect that draws air in. The diaphragm relaxes and the air is forced out of the lungs when you exhale.
signs of diaphragm issues:
- Acid reflux, heartburn, coughing, and difficulty swallowing.
- alterations to skin tone (skin may turn blue).
- rapid heartbeat, pressure in the chest, and/or breathing difficulties (especially when lying down).
- Headaches.
- Hiccups that persist or recur frequently.
Patients who need surgery for conditions affecting the chest, including diaphragm issues, are treated by a thoracic surgeon.
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A fat free diet is dangerous because IT CAN RESULT IN DEFICIENCY OF ESSENTIAL FATTY ACIDS.
Essential fatty acids refers to those fatty acids that humans must eat in their foods because the body can not synthesize them and they are required for good health. There are three type of essential fatty acids, these are arachidonic, linoleic and linolenic acids. When these essential fatty acid are absent in one's diet they lead to ill health.
