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Chapter 8 Prt 1 Microbial Genetics
Test Description: Microbial Genetics
Instructions: Answer all questions to get your test result.
1) What are genetics?
A
The study of jeans
B
the study of heredity
C
The study of genes
D
a segment of DNA
2) What is a gene?
A
the study of heredity
B
A segment of DNA that codes for a functional product, (usually a protein)
C
translation
D
transcription
3) DNA is ? into mRNA and mRNA is ? into protein.
A
transcribed, converted
B
translated, transcribed
C
transcribed, translated
D
converted, translated
4) What is DNA?
A
semiconservative replication
B
deoxyribonucleic acid
C
ribonucleic acid
D
none of these
5) DNA is made of what?
A
phosphates
B
sugars
C
proteins
D
nucleotides
6) What does a nucleotide consist of?
A
one phosphate
B
one nitrogenous base
C
All of these
D
one deoxyribose
7) What are the nitrogenous bases of DNA?
A
none of these
B
two answers
C
adenine and thymine
D
guanine and cytosine
8) Adenine and guanine are?
A
none of these
B
purines
C
codons
D
pyrimidines
9) Uracil, thymine and cytosine are what?
A
codons
B
none of these are correct
C
pyrimidines
D
purines
10) What are the nitrogenous bases of RNA?
A
adenine
B
Guanine and cytosine
C
All of these
D
Uracil
11) What is semiconservative replication?
A
none of these
B
its the nitrogenous bases of rna
C
process by which DNA is copied
D
all of these
12) What s the function of messenger RNA (mRNA)?
A
carries the genetic message from the DNA to ribosome ( a linear molecule, single stranded)
B
partailly makes up the ribosome
C
carries amino acids to the ribosome for protein synthesis.
D
noe of these
13) What does mRNA contain?
A
makes up the ribosome
B
codons; a sequence of three nitrogenous bases or nucleotides
C
all of these
D
none of these
14) What is the function of ribosomal RNA (rRNA)?
A
carries the genetic message from DNA to ribosome
B
partially makes up the ribosome
C
it contains codons
D
none of these
15) What is the function of transfer RNA (tRNA)?
A
carries amino acids to ribosome for protein synthesis
B
none of these
C
looks like a 4 leaf clover
D
carries codons
16) What does each tRNA contain?
A
a clover
B
a codon
C
none of these
D
an anticodon; sequence of three nitrogenous bases that aligns with the codons on mRNA.
17) What is a mutation?
A
a lost DNA strand
B
none of these
C
a change in the base sequence of DNA
D
An empty place
18) What are the two types of mutations?
A
spontaneous and Ames test
B
point mutation(base substitution) and frameshift mutation
C
none of these
D
transcription and translation
*select an answer for all questions
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