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Spring 08 Exam 1 - EXAM 1 YELLOW VERSION 1 What is the role...

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Page 1 EXAM 1 YELLOW VERSION 1. What is the role of RNA during DNA replication ? A) RNA is a permanent component of the newly synthesized DNA molecule. B) The RNA is translated into protein. C) It's there because DNA polymerase can only add deoxyribonucleotides to a free 3' -OH end of a pre-existing polynucleotide strand. D) RNA strands are needed to link together newly made DNA fragments. Ans: C 2. In humans, an attached earlobe is due to a recessive allele, e . Hitchhiker's thumbs (curved thumbs) are due to another recessive allele, h . If a man and woman marry who are each heterozygous for both gene loci, what are the chances they have offspring having attached earlobes and no hitchhiker's thumbs? The alleles for these two traits are on separate chromosomes. 3. Which of the following statement(s) is/are applicable to the cell division phase of this cell? 4. Which of the following is an incorrect statement regarding ribosomes? 5. Which of the following is true regarding Mendel's law of segregation? A) When gametes are formed, each will always get the dominant allele for any given gene. B) When gametes are formed, each gamete will get both parental alleles for each trait. C) When gametes are formed, each gamete will get one of the two parental alleles for each trait. D) This law does not apply to linked genes (i.e., genes on the same chromosome). E) Both C and D are true. Ans: C
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Page 2 6. In comparing mitosis and meiosis II, which of the following in A-D is a false statement?
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