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WorksheetsBiology: The Central Dog
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
Which of the following would be least likely to happen as a result of a mutation in a person's skin cells?
a)
skin cancer
b)
reduced functioning of the skin cell
c)
no change in function of the skin cell
d)
the person's offspring would have mutated skin
2.
Which of these is in order from largest to smallest.
a)
chromosome, nucleus, cell, DNA, nucleotide
b)
nucleotide, DNA, chromosome, nucleus, cell
c)
cell, nucleus, chromosome, DNA, nucleotide
d)
cell, nucleotide, DNA, chromosome, nucleus
3.
Where in the cell does translation take place?
a)
ribosome
b)
mitochondria
c)
nucleus
d)
chloroplast
4.
What does the tRNA bring to the ribosome during translation?
a)
genes
b)
proteins
c)
amino acids
d)
DNA
5.
What is the process the creates mRNA from DNA?
a)
translation
b)
transcription
6.
What is the process that creates a a protein from mRNA?
a)
transcription
b)
translation
7.
A DNA segment is changed from AATTAG to AAATAG. This is a ____.
a)
frameshift
b)
substitution
c)
insertion
d)
deletion
8.
What type of mutation causes a shift in DNA codons?
a)
substitution
b)
chromosomal
c)
frameshift
d)
none of these
9.
Which of the following sequences of processes correctly reflects the central dogma?
a)
protein synthesis, transcription, translation
b)
translation, transcription, protein synthesis
c)
transcription, translation, protein synthesis
d)
protein synthesis, translation, transcription
10.
Which of the following sequences of processes correctly reflects the central dogma?
a)
protein synthesis, transcription, translation
b)
translation, transcription, protein synthesis
c)
transcription, translation, protein synthesis
d)
protein synthesis, translation, transcription
11.
DNA replication involves which enzymes?
a)
primase, polymerase
b)
helicase, polymerase, ligase
c)
primase, ligase, helicase
d)
helicase, primase, polymerase, ligase
12.
An RNA molecules is made up of repeating subunit called...
a)
codons
b)
ribose sugars
c)
nucleotides
d)
phosphates
13.
____ bring amino acids to the ribosomes.
a)
tRNA
b)
rRNA
c)
mRNA
d)
DNA
14.
A set of 3 nucleotides representing an amino acid is called...
a)
nitrogen bases
b)
uricil
c)
codon
d)
leading strand
15.
The sides of DNA ladder are made up of
a)
nitrogen bases
b)
phosphates
c)
sugars
d)
both phosphates and sugars
16.
The rungs of DNA ladder are made up of
a)
nitrogen bases
b)
phosphates
c)
sugars
d)
both phosphates and sugars
17.
What is a gene?
a)
segment of DNA that codes for a protein
b)
the part of the cell where DNA is located
c)
the subunits that make up DNA
d)
a partial molecules of RNA
18.
Where is DNA found besides the nucleus
a)
ribosome
b)
mitochondria
c)
chloroplast
d)
both mitochondria and chloroplast
19.
Which scientists are given credit for the first successful DNA model?
a)
Watson and Crick
b)
Chargaff and Avery
c)
Franklin and Wilkins
d)
Kelly and Micheal
20.
Why is mRNA needed to carry DNA's code out of the nucleus?
a)
DNA is too big to fit through the nuclear pores
b)
mRNA can only exist outside the nucleus
c)
DNA is too small to leave the nucleus
d)
RNA already contains the codes and doesn't need DNA
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