Eukaryotic telomeres replicate differently than the rest of the chromosome. This is a consequence of which of the following?
A) the evolution of telomerase enzyme
B) DNA polymerase that cannot replicate the leading strand template to its end
C) gaps left at the end of the lagging strand
D) gaps left at the end of the lagging strand because of the need for a primer
E) the "no ends" of a circular chromosome
Answer: C
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If you ask a question about behavior that concerns how it works, or what its mechanism is, you are asking a question that involves _____
A) ultimate causation B) proximate causation C) adaptive significance D) survival value E) only the neurological level of analysis
Which early scientist proposed that cells arise only from preexisting cells by a process of division?
a. Anton van Leeuwenhoek b. Robert Brown c. Matthias Schleiden d. Theodor Schwann e. Rudolf Virchow
You are a genetic counselor, and a couple comes to you with concerns that if they have a child
together it could have hemophilia. The man has an X-linked recessive form of hemophilia, but the woman does not. Genetic tests reveal the woman is not a carrier for hemophilia. Which of the following would be a correct thing to tell them?
a. Any child that they produce will have a 50% chance of having hemophilia. b. All of their male offspring will have hemophilia, and each of their female offspring will have a 50% chance of having hemophilia. c. None of their offspring should have hemophilia, but all of their female offspring will be carriers for hemophilia. d. Each of their male offspring will have a 50% chance of having hemophilia, and while their female offspring should not have hemophilia, they will each have a 50% chance of being carriers. e. All of their male offspring will have hemophilia, and while their female offspring should not have hemophilia, they will all be carriers.
Which structure begins protein digestion under acidic conditions?
a. mouth b. stomach c. small intestines d. large intestines e. liver