7. Which the following was not one of Darwin\'s observations or inferences of A)

Question

7. Which the following was not one of Darwin's observations or inferences of A) There is often an overproduction of gametes B) Changes in organisms were gradual and chang variation in their traits C) Members of the same species may show considerable D) DNA is structured as a double helix 8. The theory of natural selection states that survival in the next A. individuals that live the longest are best adapted and selected for generation B. individuals that mutate in response to their environment will survive at the expense of those individuals who are genetically stable D. the the largest survive reproduce. contributing the most genes to the individuals and next generation. 9. Pharyngeal slits present in the embryos of organisms as diverse as fish, chicken and are humans. Why would organisms as different as these have similar embryonic structures? A) The organisms shared a common ancestor whose embryos had pharyngeal slits B) The pharyngeal slits is an acquired characteristic that just happens to look similar in different species. which have the slits, but natural C) The organisms shared a common did not selection created similar changes in the embryos over D) The pharyngeal slits develop into gills because all species need to survive in a water environment at some point in their life cycle Chapter 16 Gene E... ppt A Chapter 1

Explanation / Answer

Answer 7:D

This was proposed by Watson and Crick.

Answer 8: D

Darwin's theory of natural selection states that those individuals with heritable traits that are better suited for the envronment will survive.

Answer 9: Answer is A

Answer 10:A

Many transitional forms have been recorded so far that link the percieved gaps in hominid evolutionary record and sometimes these links are referred to as "missing links".

Answer 11: A

In 1950's, DNA was X-Rayed and studied by Rosalind Franklin and Maurice Wilkins.

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