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