Answer:
B. False
Explanation:
Orthologs are genes that find their origin in vertical descent,, paralogous on the other hand, are genes that are related via duplication events. <em>In the case of human hemoglobin, their genes originated by duplication from an common ancestral globin gen, therefore they are paralogous.</em>
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Answer:
If multi-question/answer:
Blood is passed into the nephron and removed through the urethra.
Once waste materials exit the blood, they are removed in the urine.
Some of the materials that exit the blood can be returned to the blood
If one question/answer:
Blood is passed into the nephron and removed through the urethra.
This is a very easy paragraph analysis question. The answer is c. "Over time, scientific knowledge is reevaluated and extended through new scientific research." The reason why the answer is C., is because the chronological order of the study of genetics is as follows:
- Mendel does his pea plants experiments, but did not know how traits were passed to the offspring.
- Avery concludes that DNA is the "material" that passes on traits to the offspring, probably using Mendel's research and his own research (pneuonimia virus research) as well.
- Since the existence of DNA was published, Watson and Crick used it to identify an accurate model of the structure of DNA, using the four bases: cytosine, adenine, guanine, and thymine.
Overall, we see a trend of scientists publishing results based on what scientists did before.
