Instructions

What is a major difference between eukaryote DNA replication and prayotic DNA replica A Prokaryotic replication does not require a primer Prokaryotic chromosomes have a single origin of replication, whereas cukaryotic chromosomes have multiple DNA replication is prokaryotic cells is conservative DNA replication in cukaryotic cells is semiconservative D. DNA polymerases of prokaryotes can add nucleotides to both 3′ and ‘ands of DNA strands: those of eukar S ‘direction. functional the 14. What are the four nitrogenous bases found in RNA? cytosine, guanine, thymine and urcil (C.G.T. U Cadenine, uracil, guanine and cytosine (A.U.G.C) B . adenine, acil guanine and thymine (AU.G.) D. cytosin, uracil, adenine and thymie CUAT) 15. When DNA polymerase encounters thymine (T) in the parental (template) strand, what does it add to the growing A Deoxyribose B. Phosphate group C Adenine (A) D. Uracil (U) 16. Which of the following occurs in mciosis but not in mitosis A. chromosome duplication synapsis of chromosomes C. production of daughter cells D. alignment of chromosomes at the equator 17. In tigers, a recessive allele causes a white tiger. If one phenotypically normal tiger that is heterozygous is mated to another that is phenotypically white, what percentage of their offspring is expected to be white? A SO percent B. 75 percent C. O percent D. 100 percent 18. In certain plants, tall is dominant to short. If a heterozygous plant is crossed with a homozygous tall plant what is the probability that the offspring will be short? AI B12 C. 1/4 DO 19. During DNA replication, a phosphodiester bond is formed between a phosphate group of the nucleotide being added and the last nucleotide in the polymer, A. the 5 phosphate B. C6 C. the 3’OH D. a nitrogen from the nitrogen-containing base 20. IfR is dominant or, then the offspring of the cross of RR with or will A. display the same phenotype as the RR parent. B. display the same phenotype as their parent. C have the same genotype as the RR parent. Dhave the same genotype as the parent Bonus 1. During DNA replication, helicase A. forms phosphodiester bonds between DNA nucleotides. C. It forms the DNA helix. B adds new nucleotides to the DNA. D) It separates or unwinds DNA strands. 2. Which of the following is/are true about the lagging stand DNA synthesis? A. It is synthesized by short Okazaki fragments in a 5′-to 3′ direction. B. It involves multiple short RNA primers to initiate DNA replication. C. It uses DNA polymerase I to remove RNA primers from Okazaki fragments D. All of the above 3. DNA replication results in two DNA molecules A. each with two new strands B. one with two new strands and the other with two original strands C. each with two original strands D. each with one new and one original strand 4. A human egg cell has 23 chromosomes. A human egg cell fertilized by a sperm cell will have A. 22 B. 23 C.45 chromosomes. D. 46 5. One of the earliest events that distinguishes meiosis from mitosis occurs in prophase I and involves A. Condensation of chromosomes B. Loss of the nuclear membrane C. Movement of chromosomes towards the metaphase plate D. Pairing of homologous chromosomes 13. What is a major difference between eukaryote DNA replication and prayotic DNA replica A Prokaryotic replication does not require a primer Prokaryotic chromosomes have a single origin of replication, whereas cukaryotic chromosomes have multiple DNA replication is prokaryotic cells is conservative DNA replication in cukaryotic cells is semiconservative D. DNA polymerases of prokaryotes can add nucleotides to both 3’ and ‘ands of DNA strands: those of eukar S ‘direction. functional the 14. What are the four nitrogenous bases found in RNA? cytosine, guanine, thymine and urcil (C.G.T. U Cadenine, uracil, guanine and cytosine (A.U.G.C) B . adenine, acil guanine and thymine (AU.G.) D. cytosin, uracil, adenine and thymie CUAT) 15. When DNA polymerase encounters thymine (T) in the parental (template) strand, what does it add to the growing A Deoxyribose B. Phosphate group C Adenine (A) D. Uracil (U) 16. Which of the following occurs in mciosis but not in mitosis A. chromosome duplication synapsis of chromosomes C. production of daughter cells D. alignment of chromosomes at the equator 17. In tigers, a recessive allele causes a white tiger. If one phenotypically normal tiger that is heterozygous is mated to another that is phenotypically white, what percentage of their offspring is expected to be white? A SO percent B. 75 percent C. O percent D. 100 percent 18. In certain plants, tall is dominant to short. If a heterozygous plant is crossed with a homozygous tall plant what is the probability that the offspring will be short? AI B12 C. 1/4 DO 19. During DNA replication, a phosphodiester bond is formed between a phosphate group of the nucleotide being added and the last nucleotide in the polymer, A. the 5 phosphate B. C6 C. the 3’OH D. a nitrogen from the nitrogen-containing base 20. IfR is dominant or, then the offspring of the cross of RR with or will A. display the same phenotype as the RR parent. B. display the same phenotype as their parent. C have the same genotype as the RR parent. Dhave the same genotype as the parent Bonus 1. During DNA replication, helicase A. forms phosphodiester bonds between DNA nucleotides. C. It forms the DNA helix. B adds new nucleotides to the DNA. D) It separates or unwinds DNA strands. 2. Which of the following is/are true about the lagging stand DNA synthesis? A. It is synthesized by short Okazaki fragments in a 5′-to 3’ direction. B. It involves multiple short RNA primers to initiate DNA replication. C. It uses DNA polymerase I to remove RNA primers from Okazaki fragments D. All of the above 3. DNA replication results in two DNA molecules A. each with two new strands B. one with two new strands and the other with two original strands C. each with two original strands D. each with one new and one original strand 4. A human egg cell has 23 chromosomes. A human egg cell fertilized by a sperm cell will have A. 22 B. 23 C.45 chromosomes. D. 46 5. One of the earliest events that distinguishes meiosis from mitosis occurs in prophase I and involves A. Condensation of chromosomes B. Loss of the nuclear membrane C. Movement of chromosomes towards the metaphase plate D. Pairing of homologous chromosomes

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