MMSC 490 prac tice quiz 6 chapter 7 - 100% Correctly Solved Which of the following does not contribute to the large variety of antigen -binding specificities found among the immunoglobulins? - Answer ✔️✔️-retrotransposons In addition to synthesizing DNA, DNA polymerase I has a second catalytic activity; it can - Answer ✔️✔️-remove RNA primers How many replication origins are there in the human genome? - Answer ✔️✔️-30,000 DNA replication is - Answer ✔️✔️-semiconservative Which of the following statements is true of all known DNA polymerases? - Answer ✔️✔️-They synthesize DNA in the 5′ to 3′ direction, and they require a preformed primer hydrogen -bonded to the template. DNA polymerase requires a primer and cannot initiate synthesis de novo. What serves as a primer for DNA replication? - Answer ✔️✔️-Short fragment s of RNA complementary to the template strand Which of the following statements about pyrimidine dimers is false? - Answer ✔️✔️-They can be repaired by photoreactivation in human cells. Which of the following statements regarding somatic hypermutation is false? - Answer ✔️✔️-
Somatic hypermutation is thought to control the proliferation of B lymphocytes by rendering their genome .... A major difference between immunoglobulin heavy chains and light chains is that heavy chains contain _________ regions. - Answer ✔️✔️-D Telomeres are the - Answer ✔️✔️-end-sequences of chromosomes
Somatic hypermutation is thought to control the proliferation of B lymphocytes by rendering their genome .... A major difference between immunoglobulin heavy chains and light chains is that heavy chains contain _________ regions. - Answer ✔️✔️-D Telomeres are the - Answer ✔️✔️-end-sequences of chromosomes
