How is each new nucleotide added to the growing end of a DNA strand?   a. A dehydration reaction joins the monomer to the new strand   b. By using DNA polymerase   c. Both of the above   d. A hydrolytic reaction joins the monomer to the new strand

You are studying bacterial cells and you find bacteria with a mutation that causes it to produce non-functional ligase. If you allowed that cell to replicate once and then you isolated the DNA from the two newly formed cells what would you expect to find? A. One longer single strand of DNA and many short single strands of DNA B. Two longer single strands of DNA and many short single strands of DNA C. Four longer single strands of DNA and many short single strands of DNA D. Eight longer single strands of DNA and many short single strands of DNA Choose the correct answer above and explain why you chose that answer. Your explanation should discuss the replication of DNA in bacteria and the role of ligase in DNA replication.

Which statement regarding DNA replication is false?   A. On a DNA strand that is being synthesized, the 3' end is growing B. On a DNA strand that is being synthesized, the 5' end is growing C. On a DNA strand that is being synthesized, both 3' and 5' ends are  growing D. All of the above  E. None of the above

Which statement about DNA bases is true?   A. Adenine and guanine are purines.   B. Thymine and adenine are pyrimidines.   C. Guanine and cytosine are pyrimidines.   D. Guanine and cytosine are purines.   E. None are correct

According to the picture what is the process of DNA? Use the labeled parts in the answer.

One strand of a DNA molecule has the base sequence 5’-CACTTA-3’. The complementary base sequence on the other strand of DNA will be 3’-_____-5’. A. GTGAAT B. GUGAAU C. UTUGGT D. TGTAAG

Which step follows the assembly of new DNA strands by DNA polymerase?   A. Enzymes unwind and separate the two strands of DNA.   B. Repair enzymes correct potential mutations in the DNA sequence.   C. Primers base-pair with the exposed single DNA strands.   D. DNA ligase seals any gaps remaining between bases of new DNA.

What is the approximate length of a complete turn of a double helix of DNA? A. 3400 pm B. 340 pm C. 2000 pm D. 800 pm

A mutation in which of these proteins will lead to increased mutations in all daughter cells? A. helicase B. topoisomerase C. ligase D. DNA polymerase

Within the Central Dogma, what is the primary function of DNA?   a. make proteins   b. preserve nuclear integrity   c. maintain the genetic information   d. keep a boundary between RNA and Protein