Central Dogma of Molecular Biology (DNA Replication)

What is the building blocks of DNA?

• Nucleotide

• Fats

• Amino acids

• Starch

In DNA, Adenine always pair with what nitrogenous base?

• Guanine

• Cytosine

• Thymine

• Uracil

The backbone of the DNA ladder are made of?

• Sugar only

• Sugar and phosphate group

• Phosphate group only

• Proteins

Which of the following is the process by

which DNA makes a copy of itself?

• Transcription

• Replication

• Translation

• Photosynthesis

What do you call to the “twisted ladder”

shape of DNA?

• Double Helix

• Hydrogen twist

• Deoxyribose flip

• Double membrane

Tags

NGSS.HS-LS1-1

Which of the following statements best

explains the mechanism for DNA replication?

• DNA replication is reductive, because half the total DNA present is copied.

• DNA replication is dispersive, because the two resulting DNA molecules are mixtures of parent and daughter DNA.

• DNA replication is semi-conservative, because each DNA strand serves as a template during replication.

What is the function of the enzyme DNA

polymerase?

• Gluing together Okazaki fragments

• Unzipping the two strands

• Joining together nucleotide during replication

• Stabilizing the double helix DNA

Okazaki fragments occur with replicating

what?

• Lagging strand

• Both leading and lagging strand

• Leading strand

When does DNA replication occur during

the cell cycle?

• G1 phase

• S phase

• G2 phase

• Telophase

Which of the following best describes the

arrangement of the sides of the DNA

molecule?

• Twisted

• Bonded

• Alternating

• Antiparallel