The replication of chromosomes by eukaryotes occurs in a relatively short period of time because ? a. The eukaryotes have more amount of DNA for replication b. The eukaryotic replication machinery is 1000 times faster than prokaryotes c. Each chromosome contains multiple replicons di ba ito? Same eto d. Eukaryotic DNA is always DNA stranded

The replication of chromosomes by eukaryotes occurs in a relatively short period of time because ? a. The eukaryotes have more amount of DNA for replication b. The eukaryotic replication machinery is 1000 times faster than prokaryotes c. Each chromosome contains multiple replicons di ba ito? Same eto d. Eukaryotic DNA is always DNA stranded

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter8: Dna Structure And Function

Section: Chapter Questions

Problem 11SA: The phrase 5to3 refers to the _________ . a. timing of DNA replication b. directionality of DNA...

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Energy that drives the attachment of a nucleotide to the end of a growing strand of DNA comes from ________. a. the nucleotide b. DNA polymerase c. phosphate-group transfers from ATP
Choose the combination of answers that most accurately completes the statement.Why must the lagging strand of DNA be replicated in short pieces? a. because of limited space b. otherwise, the helix will become distorted c. the DNA polymerase can synthesize in only one direction d. to make proofreading of code easier
Bacterial DNA has how many origins of replication? A) 0 B) 1 C) 10 D) depends on the size of the DNA
when a cell to divide, its DNA must be replicated (copied). a.List the most important participating components and their functions in replication b.why is it important that the replication goes right and that relatively few mutations occur during the replication? c.Will the offspring of the individual who received a mutation inherit the mutation
What is the function of Ligase during DNA Replication a Releases tension on the DNA as it unwinds b Puts down RNA primers so replication can continue c Binds Okazaki Fragments into a continuous DNA strand d Binds to single stranded DNA to protect it from degradation
A drug that inhibits the DNAa protein is added to a culture of E. coli cells. What is the first step of DNA replication that will be impaired by this drug? PICK ONE ANSWER: A. Keeping parent DNA strands separated B. Releasing tension generated by supercoiling C. Activating the origin of replication D. Making primers E. Forming phosphodiester bonds
The diagram shows a model of DNA replication. The diagram points out a number of enzymes and protein factors involved in the process. If this cell were cancerous, a doctor might be using a chemotherapy drug to prevent the replication process from taking place. One such drug, topotecan, inhibits the topoisomerase enzyme from working. Based on the model, if topotecan is used, how will this affect the replication process? A: The hydrogen bonds between the bases will not break B: The double helix of the DNA molecule will not unwind C: It will prevent the addition if complementary nitrogen bases to the leading or lagging DNA strands D: It will prevent the addition of nitrogen bases due to instability of the single-stranded DNA chains
A scientist uses a molecule of DNA composed of radioactive nucleotides as a template for replication and transcription in a nonradioactive environment. a) What percentage of individual strands of DNA will be radioactive after three (3) DNA replication cycles? 2. b) What percentage of RNA will be radioactive?
use the terms RNA primase dna polymerase helicase leading strand and lagging strand to briefly describe how DNA replicates
What is DNA polymerase? a.An enzyme that carries out DNA replication b.Short, single strand of DNA that base-pairs with a specific DNA sequence c.An enzyme that corrects mutations that arise during the replication of DNA d.An enzyme that seals any gaps that remain between bases of replicating strands of DNA
Which describes the role of primase during replication? It catalyzes the formation of phosphodiester bonds using NTPs as substrates. It coordinates synthesis of the leading strand and the lagging strand. It functions as a holoenzyme that polymerizes in the 3’→ 5’ direction. It uses an exonuclease activity to remove incorrect nucleotides.
How is synthesis terminated in DNA Replication? a. DNA Polymerase runs out of template b. DNA Polymerase reaches an end site c. DNA Polymerase reads a stop codon d. DNA Polymerase adds a Poly-A Tail to the new daughter strand e. DNA Polymerase synthesizes a terminator sequence