NEW
Font size
S
M
L
XL
WorksheetsMolecular Genetics
Total questions: 25
Worksheet time: 13mins
Name
Class
Date
1.
Proteins are made of ______________.
a)
amino acids
b)
DNA
c)
genetic code
d)
proteins
2.
Where does protein synthesis take place?
a)
cell membrane
b)
nucleus
c)
lysosome
d)
ribosome
3.
Which of the following nitrogen bases is NOT found in DNA?
a)
guanine
b)
thymine
c)
uracil
d)
cytosine
4.
A DNA nucleotide is composed of a _______________.
a)
sugar, phosphate, and nitrogen base
b)
hydrogen bond and nitrogen base
c)
carbon dioxide and nitrogen base
d)
RNA strand and nitrogen base
5.
What type of molecule carries an amino acid during translation?
a)
messenger RNA
b)
DNA
c)
transfer RNA
d)
ribosome
6.
The correspondence between a messenger RNA triplet sequence and a specific amino acid is called _______________.
a)
multiple alleles
b)
survival of the fittest
c)
the genetic code
d)
a base mutation
7.
A ___________ is made up of a sequence of nitrogen bases that code for a specific protein.
a)
ribosome
b)
gene
c)
chromosome
d)
codon
8.
The production of different proteins determines the traits of an organism.
a)
True
b)
False
9.
A codon is a ____________.
a)
triplet code found on messenger RNA
b)
triplet code found on transfer RNA
c)
nucleotide found on DNA
d)
gene sequence
10.
Approximately how many different genes are found on human chromosomes?
a)
500
b)
2,000
c)
10,000
d)
100,000
11.
What is a mutation?
a)
it is caused when toxic waste gets on your skin
b)
a type of RNA
c)
a change that takes place on a gene or a chromosome
d)
a type of disease
12.
What are multiple alleles?
a)
traits that are controlled by more than two alleles
b)
traits that are controlled by two alleles
c)
traits that are controlled by one allele
d)
traits that are on many different genes
13.
What is the correct definition for the term "allele"?
a)
triplet code that corresponds to a specific amino acid
b)
alternate forms of a gene
c)
a change in the DNA sequence
14.
What is the correct definition for the term "codon"?
a)
specific amino acid
b)
alternate forms of a gene
c)
a change in the DNA sequence
15.
What is the correct definition for the term "mutation"?
a)
specific amino acid
b)
alternate forms of a gene
c)
a change in the DNA sequence
16.
What is the correct definition for the term "replication"?
a)
a process of copying DNA
b)
process of making messenger RNA
c)
process of reading the messenger RNA code to make a protein
17.
What is the correct definition for the term "transcription"?
a)
a process of copying DNA
b)
process of making messenger RNA
c)
process of reading the messenger RNA code to make a protein
18.
What is the correct definition for the term "translation"?
a)
a process of copying DNA
b)
process of making messenger RNA
c)
process of reading the messenger RNA code to make a protein
19.
What is the correct definition for the term "nucleus"?
a)
an organelle that is the site of DNA replication and transcription
b)
area outside of the nucleus where ribosomes are found
c)
organelle that helps make proteins by translating mRNA
20.
What is the correct definition for the term "cytoplasm"?
a)
an organelle that is the site of DNA replication and transcription
b)
area outside of the nucleus where ribosomes are found
c)
organelle that helps make proteins by translating mRNA
21.
What is the correct definition for the term "ribosome"?
a)
an organelle that is the site of DNA replication and transcription
b)
area outside of the nucleus where ribosomes are found
c)
organelle that helps make proteins by translating mRNA
22.
What is the correct definition for the term "chromosome"?
a)
a specific sequence of DNA that codes for a protein
b)
composed of a sequence of nucleotides
c)
composed of very, long compacted strands of DNA
d)
basic unit (monomer) of DNA and RNA
23.
What is the correct definition for the term "nucleotide"?
a)
a specific sequence of DNA that codes for a protein
b)
composed of a sequence of nucleotides
c)
composed of very long, compacted strands of DNA
d)
basic unit (monomer) of DNA and RNA
24.
What is the correct definition for the term "gene"?
a)
a specific sequence of DNA that codes for a protein
b)
composed of a sequence of nucleotides
c)
composed of very long, compacted strands of DNA
d)
basic unit (monomer) of DNA and RNA
25.
What is the correct definition for the term "DNA"?
a)
a specific sequence of DNA that codes for a protein
b)
composed of a sequence of nucleotides
c)
composed of very long, compacted strands of DNA
d)
basic unit (monomer) of DNA and RNA
Reset
