TEXES 181 CERTIFICATION EVALUATION EXAM
2026 QUESTIONS WITH ANSWERS
GUARANTEED TO PASS
◉ What enzyme catalyzes the elongation of a DNA strand in the 5' to 3'
direction. Answer: DNA Polymerase III
◉ An enzyme called__ catalyzes the lengthening of telomeres in
eukaryotic germ cells.. Answer: Telomerase
◉ The leading and the lagging strands differ in that_____. Answer: the
leading strand is synthesized in the same direction as the movement of
the replication fork and the lagging strand is synthesized in the opposite
direction
◉ Why do histones bind tightly to DNA. Answer: Histones are
positively charged and DNA is negatively charged
◉ What is the role of DNA ligase in the elongation of the lagging strand
during DNA replication. Answer: It joins okazaki fragments together
2026 QUESTIONS WITH ANSWERS
GUARANTEED TO PASS
◉ What enzyme catalyzes the elongation of a DNA strand in the 5' to 3'
direction. Answer: DNA Polymerase III
◉ An enzyme called__ catalyzes the lengthening of telomeres in
eukaryotic germ cells.. Answer: Telomerase
◉ The leading and the lagging strands differ in that_____. Answer: the
leading strand is synthesized in the same direction as the movement of
the replication fork and the lagging strand is synthesized in the opposite
direction
◉ Why do histones bind tightly to DNA. Answer: Histones are
positively charged and DNA is negatively charged
◉ What is the role of DNA ligase in the elongation of the lagging strand
during DNA replication. Answer: It joins okazaki fragments together