FREE AND STUDY GAMES ABOUT DNA REPLICATION QUIZ

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FREE AND STUDY GAMES ABOUT DNA REPLICATION QUIZ

EXAM QUESTIONS

Qs and Ans Expert- Explanation

This Exam contains:

-Guarantee passing score -44 Questions and Answers -format set of multiple-choice -Expert- Explanation

Question 1: why is DNA semi-conservative?

Answer:

after the helix splits one original strand is kept and another new strand is replaced

Question 2: what is the function of DNA polymerase 3?

Answer:

builds new DNA strands

Question 3: DNA strands compliment eachoher. This means....

Answer:

they are not identical

Question 4: what does DNA strands are "antiparallel" mean

Answer:

they dont go in the ly same direction

Question 5: what are the monomers/bulding blocks of DNA?

Answer:

nucleotides?

Question 6: what parts of the nucleotides make up the rungs of the ladder?

Answer:

nitrogen containing base Question 7: what parts of the nucleotide make up the sides (backbone) of the ladder?

Answer:

phosphate, deoxyribose sugar

Question 8: what is the 5th step to cell relication

Answer:

DNA polymerse buids new strands

Question 9: what way does the leading strand move? Its built in one...

Answer:

5'[3 (quick) fragment

Question 10: what kind of sugar is found in a nucleotide?

Answer:

deoxyribose sugar

Question 11: what way does the lagging strand move?

Answer:

3'5 (requires a slight delay)

Question 12: what is the function of DNA polymerase 1 & 2?

Answer:

are involved in DNA repairing and proofreading

Question 13: what is the function of DNA polymerase 1

Answer:

it could build and refix the holes or gaps and could proofread and fix anything wrong and check for mutation

Question 14: what is the "twisted ladder" shape called?

Answer:

double helix Question 15: What strand is built in many fragments, and a building block for DNA synthesis together thry form short double stranded DNA sections.

Answer:

ozaaki fragment

Question 16: what is the importance of DNA replication?

Answer:

creates a next copy of DNA that have to go into oe of the two new daughter cells when a cell divides.

Question 17: mistakes in DNA strands lead to _____

Answer:

mutations

Question 18: Without DNA replication what would happen?

Answer:

lacks heredity fabric so it wont have the instructions for the protiens to function correctly in the body

Question 19: how many hydrogen bonds exisist between adedenine and thymine?

Answer:

2

Question 20: what is the first step to cell replication?

Answer:

gyrase undwinds the helix

Question 21: replication occurs during the ____ (when cells are growing)

Answer:

interphase

Question 22: what is the 2nd step to cell replication

Answer:

the helicase unzips the helix

Question 23: What is DNA?

Answer:

molecule that carres the genetic instructions used in growth, development, and reproduction of all known living organisms.

Question 24: DNA is a ______

Answer:

polymer

Question 25: Who came upwith the base pairing rule?

Answer:

Elwin Chargraff

Question 26: DNA starts at the _____

Answer:

origin

Question 27: what is the function of ligase?

Answer:

"the gluer" that helps glue DNA fragments together

Question 28: can cells replicate and divide at the same time?

Answer:

no; too much multitasking