Evolution is defined as:
A. survival of the fittest.
B. a change in the frequency of a physical trait in a population over time.
C. a progressive "ladder" of changes from the most primitive organisms to the most advanced organisms.
D. a change in the frequency of alleles in a population over time.
Answer: D. a change in the frequency of alleles in a population over time.
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Phagotrophy (Phagocytosis) is:
A. the movement of small organic molecules across the cell membrane B. the capture and ingestion of food particles by a cell C. the synthesis of organic molecules from inorganic molecules using light as an energy source D. the ability to use photosynthesis and osmosis or particle ingestion for nutrition
Discuss how and why the investigative method of molecular genetics has had the greatest impact on human genetics
over the last several decades. What will be an ideal response?
In balanced translocation heterozygotes, which pattern of chromosome segregation produces viable gametes and progeny?
A) adjacent-1 segregation B) adjacent-2 segregation C) alternate segregation D) Adjacent-1 and alternate segregation are both viable. E) Adjacent-1, adjacent-2, and alternate segregation are all viable.
Teosinte was the forerunner of modern
A. oats. B. wheat. C. rice. D. maize. E. barley.