Answer:
Explanation:
The method of reproduction in humans is sexual reproduction: a type of reproduction that occurs when new organisms are produced through the coming together of genetic information from two individuals of different sexes mostly a male and a female (egg cell and the sperm). The genetic information for making the blood cells; the red blood cells genes in particular exists on chromosomes in the nucleus of the sex cells (egg and sperm cell) also called the gametes. Basically, the DNA provides instructions for the production of mostly all of the body's needs.
The genes coding for the sickle cells which is the abnormal red cell is always inherited in the recessive form meaning both parent has to possess one copy each of the defective gene in their DNA. For humans to get one copy of a sickle cell gene and one copy normal gene; it means one of the parents gametes (be it male or female) contributed the defective chromosome and the other normal gene is contributed by the other parent during copulation giving rise to an individual that is heterozygous for the trait
For example, the sperm cell with the defective gene fertilizes the egg cell that has the normal copy of the gene producing an heterozgous individual.
Answer:
Mutation rate is not a difference between a population showing exponential growth and a population showing logistic growth. Hope this helped :D
Answer:
It looks like there are two main ways to modify humans :)
Explanation:
1. <em>Somatic genetic modification</em> would be the direct way to genetically modify through adding or cutting some of the cells of an existing person usually to alleviate a medical condition (but the results are not hereditary)
<em>2</em><em>.</em><em> </em><em>Germline</em><em> </em><em>genetic</em><em> </em><em>mod</em><em>ification</em> is also a direct way to genetically modify but instead using molecular engineering techniques (this would be hereditary)
The distinction between protostomes and deuterostomes is based on differences in their embryological development. Protostomes develop their oral end from their first developmental opening, while deuterostomes have their oral end develop from the second opening on the dorsal surface.
It is the prophase which is the first phase of mitosis.
