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Chapter 14: Q. 16 (page 367)

The ends of the linear chromosomes are maintained by

a. helicase

b. primase

c. DNA pol

d. telomerase

Short Answer

Expert verified

Option d is the correct answer.

Step by step solution

01

Introduction

All of a person's genetic information is stored in chromosomes, which are thread-like structures made of deoxyribonucleic acid (DNA). Every living thing has a distinct number and kind of chromosomes. It could be either circular or linear in shape. Animals and plants have the majority of linear chromosomes, respectively.

02

The explanation for the correct answer.

The DNA polymerase can now add nucleotides that are complementary to the ends of the chromosomes if the lagging strand template has been appropriately extended. The chromosomal ends are thus duplicated. The telomerase enzyme keeps the ends of linear chromosomes attached.

03

The explanation for the incorrect options.

Double stranded DNA is unwound and split by an enzyme known as helicase. Short RNA (ribonucleic acid) strands known as primases are created in opposition to a DNA strand. DNA polymerase uses RNA primer to replicate a fresh strand of double helix DNA.

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Most popular questions from this chapter

Provide a brief summary of the Sanger sequencing method.

Explain Griffith's transformation experiments. What did he conclude from them?

DNA replication is bidirectional and discontinuous; explain your understanding of those concepts.

Prokaryotes have a single circular chromosome while eukaryotes have linear chromosomes. Describe one advantage and one disadvantage to the eukaryotic genome packaging compared to the prokaryotes.

If the sequence of the 5'-3' strand is AATGCTAC, then the complementary sequence has the following sequence: a. 3'-AATGCTAC-5' b. 3'-CATCGTAA-5' c. 3'-TTACGATG-5' d. 3'-GTAGCATT-5
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