WorksheetsBio. 2 Quizziz Ch. 12: Molecular Genetics (DNA)
Total questions: 20
Worksheet time: 40mins
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
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
This is complementary to codon of mRNA (found on tRNA):
anticodon
lagging strand
Okazaki fragment
antiparallel
This acts like an “operator” - it contains genes for a metabolic pathway:
intron
operon
exon
None of the responses are correct
The DNA molecule replicates by this method:
Non-Conservative Replication
Double Conservative Replication
Semi-Conservative Replication
Re-Conservative Replication
This is the 3-base code in DNA or mRNA:
Okazaki Framgment
retrocodon
anticodon
codon
These are the special proteins in DNA:
histones
exons
nucleosomes
chromatins
This is controlling genes in response to environment:
Gene Regulation
Gene Chromatation
Gene Duplication
Gene Transcription
Which of the following would be the COMPLIMENTARY PAIR of this DNA strand (ATTCGCATG) into mRNA:
CAUGCGAAU
TAAGCGTAC
UAAGCGUAC
AUUCGCAUG
Which of the following would be the COMPLIMENTARY PAIR of this DNA strand (TACCATGAC) into DNA 2:
AUGGUACUG
UACCAUGAC
GTCATGGTA
ATGGTACTG
A DNA segment is changed from -AATTAGAAATAG- to -ATTAGAAATAG-. This is a ____.
Inversion (both sequences are complimentary to each other)
Frameshift Mutation (the second A in the original sequence was deleted- causing the "reading" of the whole sequence to change)
Insertion (the second t in the original sequence was added)
Translation (the last G in the original sequence was modified)
A DNA segment is changed from-AATTAG- to -AAATAG-. This is a ____.
Frameshift mutation (changes "reading" of entire sequence)
Frameshift mutation (changes "reading" of entire sequence)
Insertion (the third letter of the sequence is added to the original 6 base sequence)
Substitution (the third letter of the sequence changes from a T to an A)
This is the process of assembling proteins:
duplication
transcription
translation
retrocation
