<span>Thomas Hunt Morgan hoped to discover large-scale mutations that would represent the emergence of new species.</span>
Answer:
it was only 90 percent effective
Explanation:
In 1954 a massive controlled field trial was launched, sponsored by the National Foundation for Infantile Paralysis. Almost two million U.S. children between the ages of six and nine participated. In some areas of the country half of these “Polio Pioneers” received the vaccine, while half received a placebo. In other areas of the country children who did not receive any vaccine were carefully observed. On April 12, 1955, Thomas Francis, Salk’s mentor and the director of the trial, reported that the vaccine was safe, potent, and 90% effective in protecting against paralytic poliomyelitis.
<span>Protein</span>
<span>Cilia and flagella are made up of microtubules covered by
plasma membrane and they projection from the cell. Thus, cilia are flagella are
motile and designed to move substances over or around the cell and they can as
well move the cell itself. In eukaryotes, they are conserved in their polypeptide
composition, structure and function as motile and sensory organelles.</span>
Resorbing or breaking down bone matrix are the responsibilities of Osteoclasts. It is a balance between bone production and bone absorption into the circulation of tissue or cells which is obligatory for remodeling and re-establishing the skeleton. Osteocytes are mature osteoblasts – a cell that produces and discharge a substance for bone formation.
Answer:
The maternal genotype determines the phenotype of the offspring. Maternal effects often occur because the mother supplies a particular mRNA or protein to the oocyte, hence the maternal genome determines whether the molecule is functional.
Explanation:
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