BIO BEYOND GENETIC REPLICATION
FINAL REVIEW SHEET 2026 AUTHENTIC
QUESTIONS AND FULL SOLUTIONS
COMPLETE STUDY MATERIAL GRADED A+
⩥What extreme conditions can tardigrades survive?
Answer: Heat, pressure, radiation, and vacuum
⩥How long can tardigrades suspend their metabolism?
Answer: For years
⩥What is the significance of telomeres in DNA replication?
Answer: They protect the ends of chromosomes
⩥What is the role of the origin in DNA replication?
Answer: It is where DNA replication initiates
⩥What is the function of the centromere?
Answer: It serves as anchor points for the mitotic spindle
⩥What type of DNA replication mechanism was established by the
Meselson/Stahl experiment?
, Answer: Semi-conservative DNA replication
⩥What does DNA polymerase do?
Answer: It drives DNA replication by adding nucleotides to the growing
DNA strand
⩥What is the direction of DNA synthesis?
Answer: 5' to 3' direction
⩥What are Okazaki fragments?
Answer: Small pieces of DNA synthesized on the lagging strand during
DNA replication
⩥What enzyme provides the starting primer for DNA polymerase?
Answer: Primase
⩥What is the purpose of DNA ligase in DNA replication?
Answer: It joins Okazaki fragments together
⩥What problem does telomerase solve during DNA replication?
Answer: It extends telomeres to prevent chromosome shortening
FINAL REVIEW SHEET 2026 AUTHENTIC
QUESTIONS AND FULL SOLUTIONS
COMPLETE STUDY MATERIAL GRADED A+
⩥What extreme conditions can tardigrades survive?
Answer: Heat, pressure, radiation, and vacuum
⩥How long can tardigrades suspend their metabolism?
Answer: For years
⩥What is the significance of telomeres in DNA replication?
Answer: They protect the ends of chromosomes
⩥What is the role of the origin in DNA replication?
Answer: It is where DNA replication initiates
⩥What is the function of the centromere?
Answer: It serves as anchor points for the mitotic spindle
⩥What type of DNA replication mechanism was established by the
Meselson/Stahl experiment?
, Answer: Semi-conservative DNA replication
⩥What does DNA polymerase do?
Answer: It drives DNA replication by adding nucleotides to the growing
DNA strand
⩥What is the direction of DNA synthesis?
Answer: 5' to 3' direction
⩥What are Okazaki fragments?
Answer: Small pieces of DNA synthesized on the lagging strand during
DNA replication
⩥What enzyme provides the starting primer for DNA polymerase?
Answer: Primase
⩥What is the purpose of DNA ligase in DNA replication?
Answer: It joins Okazaki fragments together
⩥What problem does telomerase solve during DNA replication?
Answer: It extends telomeres to prevent chromosome shortening
