Answer:
Changes in allele frequencies over time can indicate that genetic drift is occurring or that new mutations have been introduced into the population.
Answer: When the northern half of Earth is tilted toward the Sun, the southern hemisphere is tilted away. People in the southern hemisphere experience the shorter day lengths and colder temperatures of winter.
Explanation:
Answer:e
retroviruses
Explanation:
Retroviruses appear to cause cancer in their host by mutating the host gene sequences allowing for the activation of some potentially oncogenic genes to be expressed. They do this by inserting their proviral DNA into the host genome at specific regulatory sequences deregulating cellular signaling and transcriptional controls.
Selective serotonin uptake inhibitors began appearing in the MARKET, one example is LUVOX.
Selective serotonin uptake inhibitors are antidepressant drugs. Their major function is to block the re uptake of serotonin in some parts of the brain. The drugs have fewer sides effects compare to other antidepressants and its administration usually brings about approximately 80% of improvement within four weeks of usage. Other examples of selective serotonin uptake inhibitors are: Paxil, Prozc, Zoloft and Celexa.<span />
