1. DNA replication is a. conservative. b. semiconservative C. d. liberal. 2. Sho
ID: 203348 • Letter: 1
Question
1. DNA replication is a. conservative. b. semiconservative C. d. liberal. 2. Short segments of newly synthesized DNA on the lagging strand of DNIA are called Okazaki fragments. b. replicons. c. origins of replication. d. lagging fragments 3. The short fragments of DNA produced during DNA replication are joined together by a. RNA polymerase. b. DNA polymerase. c. DNA helicase. d. DNA ligase. 4. Origins of replication are the a. sites where DNA transcription starts. b. binding sites for the protein complex that initiates DNA synthesis. c. loops with two replication forks seen in replicating DNA. d. forks where DNA replication is occurring 5. Telomeres are the a. midpoints of chromosomes. b. microtubule attachment points on chromosomes. c. end-sequences of chromosomes. d. enzyme complexes that complete DNA replication. 6. Point mutations in DNA result from a. incorporation of incorrect bases during replication. b. changes as a result of chemical exposure. c. changes as a result of radiation exposure d. All of the above 7. The most common cause of skin cancer is damage to DNA by a. infrared light. b. ultraviolet light c. radiation. d. particle radiation. 8. Recombination of DNA strands is important because it can a. rearrange DNA sequences to change gene expression during development. b. inactivate the repair of damaged sequences. c. inhibit the diversity in the next generation. d. All of the above 9. Gene amplification is a. seen in ribosomal genes of developing amphibian oocytes. b. seen in the genes for muscle proteins of developing muscle cells. c. seen in the genes for immunoglobulins during B lymphocyte development. d. never seen in eukaryotic cells, since the amount of DNA per cell is always constant except during of the cell cycle © 2016 Sinauer Associates, Inc.Explanation / Answer
1. DNA replication is Semiconservative (Option b). This is because, both the strands take give rise to new strands during replication.
2. Short sequences on the lagging strand are called Okazaki fragments (Option a)
3. Short fragments of DNA are joined together by DNA ligase (Option d)
4. Option b
5. Telomeres are end sequences of chromosomes (Option c)
6. Option d
7. Option b
8. option d
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.