I believe that the best answer for this question is "gene mutations." Gene mutations can either take place through nucleotide substitutions, which occur when the the sequence of nucleotides are altered. Frameshift mutations can also occur. They involve the insertion or deletion of a DNA molecule's bases. Hope this helps.
Answer: C
Has about 95% water in It
The answer is either the second one or the fourth one.
The genetic recombination of human influenza A caused massive, widespread epidemics that affected the global human population several times in the twentieth century.
<h3>What is influenza ?</h3>
Influenza is a disease caused by virus which is contagious.It is different from a normal cold as it shows severe symptoms than flu.
Influenza is caused by influenza virus and people get infected when they breathe in tiny airborne droplets from the cough or sneezes of infected person.
Outbreaks of influenza A virus occurred in twentieth century.During 1918 influenza pandemic was the most dangerous pandemic.
Therefore, the genetic recombination of human influenza A caused massive, widespread epidemics that affected the global human population several times in the twentieth century.
Learn more about influenza here:
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Answer:
A hydrophobic hormone with an intracellular receptor.
Explanation:
Because of their chemical nature, hydrophobic hormones (like steroid or thyroid hormones) can cross the cell membrane and bind to its intracellular receptor forming a hormone-receptor complex. This complex will then bind a specific segment of the DNA and will act a transcription factor.
