Bio. 2 Quizziz Ch. 12: Molecular Genetics (DNA)

Which of the following are found in the "backbone" of the DNA molecule?

• uracil and thymine

• adenine and guanine

• sugar and phosphate

• nuclein and magnesium

The enzyme _____ is responsible for “unwinding” and “unzipping” DNA.

• DNA Ligase

• RNA Polymerase

• DNA Polymerase

• DNA Helicase

The pieces of DNA that are coded for are called:

• exons

• introns

• operons

• polymers

Tags

NGSS.HS-LS3-1

Which of the following sequences of processes correctly reflects the order of events for DNA?

• translation, transcription, protein synthesis

• transcription, translation, protein synthesis

• protein synthesis, transcription, translation

• protein synthesis, translation, transcription

The enzyme ____ connects the strands of DNA after replication.

• DNA Ligase

• DNA Helicase

• RNA Ligase

• DNA Polymerase

These responsible for the general body pattern of most animals:

• introns

• Okazaki Fragments

• Hox Genes

• exons

This type of RNA is a single stranded molecule that sends the message of codons from the nucleus to the ribosome.

• dRNA

• tRNA

• mRNA

• rRNA

The shape of the DNA molecule is:

• pleated sheet

• double chain

• double helix

• single chain

This is a permanent change that occurs in a cell’s DNA:

• operon

• intern

• intron

• mutation

Tags

NGSS.HS-LS3-2

This is complementary to codon of mRNA (found on tRNA):

• anticodon

• lagging strand

• Okazaki fragment

• antiparallel