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Biology & Geology (STEM)

Chapter 1 - Support and Movement in Living Organisms

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Chapter 2 - Hormonal Coordination in Living Organisms

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Chapter 3 - Reproduction in Living Organisms

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Chapter 4 - Immunity in Living Organisms

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Chapter 5 - Molecular Biology - DNA Structure and Function

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Chapter 6 - Molecular Biology - RNA, Protein Synthesis and Genetic Engineering

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Chapter 7 - Geology, Earth Sciences and Ecology

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Quiz

Lesson 1 Quiz: Types of RNA, Genetic Code and Protein Translation

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  • Questions count: 20
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1.
STEM Geology Question 28: Which type of geological fault is formed when hanging-wall rocks slide downward relative to the footwall under tensional stress?
Thrust fault with an inclination angle less than 45 degrees
Strike-slip fault with purely horizontal displacement
Reverse fault caused by lateral compressional stress
Normal fault resulting from crustal extensional (tensional) forces
2.
STEM Geology Question 43: Which type of geological fault is formed when hanging-wall rocks slide downward relative to the footwall under tensional stress?
Normal fault resulting from crustal extensional (tensional) forces
Thrust fault with an inclination angle less than 45 degrees
Reverse fault caused by lateral compressional stress
Strike-slip fault with purely horizontal displacement
3.
STEM Genetics Question 25: What is the minimum number of tRNA anticodons required to translate an mRNA transcript containing 150 codons, terminating with a UAG stop codon?
149 tRNA molecules (stop codons do not code for amino acids or tRNAs)
150 tRNA molecules
151 tRNA molecules
75 tRNA molecules
4.
STEM Genetics Question 11: What is the minimum number of tRNA anticodons required to translate an mRNA transcript containing 150 codons, terminating with a UAG stop codon?
150 tRNA molecules
75 tRNA molecules
151 tRNA molecules
149 tRNA molecules (stop codons do not code for amino acids or tRNAs)
5.
STEM Immunology Question 18: Which immune cells are directly responsible for secreting perforin proteins and granzymes to lyse virally infected cells and tumor cells?
Helper T-cells (CD4+ Th) exclusively
Cytotoxic T-cells (CD8+ Tc) and Natural Killer (NK) cells
Mast cells releasing histamine
Plasma B-cells secreting IgG
6.
STEM Immunology Question 3: Which immune cells are directly responsible for secreting perforin proteins and granzymes to lyse virally infected cells and tumor cells?
Plasma B-cells secreting IgG
Helper T-cells (CD4+ Th) exclusively
Cytotoxic T-cells (CD8+ Tc) and Natural Killer (NK) cells
Mast cells releasing histamine
7.
STEM Immunology Question 28: Which immune cells are directly responsible for secreting perforin proteins and granzymes to lyse virally infected cells and tumor cells?
Plasma B-cells secreting IgG
Helper T-cells (CD4+ Th) exclusively
Cytotoxic T-cells (CD8+ Tc) and Natural Killer (NK) cells
Mast cells releasing histamine
8.
STEM Genetics Question 24: What is the minimum number of tRNA anticodons required to translate an mRNA transcript containing 150 codons, terminating with a UAG stop codon?
151 tRNA molecules
75 tRNA molecules
150 tRNA molecules
149 tRNA molecules (stop codons do not code for amino acids or tRNAs)
9.
STEM Immunology Question 12: Which immune cells are directly responsible for secreting perforin proteins and granzymes to lyse virally infected cells and tumor cells?
Helper T-cells (CD4+ Th) exclusively
Plasma B-cells secreting IgG
Mast cells releasing histamine
Cytotoxic T-cells (CD8+ Tc) and Natural Killer (NK) cells
10.
STEM Immunology Question 23: Which immune cells are directly responsible for secreting perforin proteins and granzymes to lyse virally infected cells and tumor cells?
Helper T-cells (CD4+ Th) exclusively
Cytotoxic T-cells (CD8+ Tc) and Natural Killer (NK) cells
Mast cells releasing histamine
Plasma B-cells secreting IgG
11.
STEM Immunology Question 5: Which immune cells are directly responsible for secreting perforin proteins and granzymes to lyse virally infected cells and tumor cells?
Plasma B-cells secreting IgG
Mast cells releasing histamine
Helper T-cells (CD4+ Th) exclusively
Cytotoxic T-cells (CD8+ Tc) and Natural Killer (NK) cells
12.
STEM Geology Question 22: Which type of geological fault is formed when hanging-wall rocks slide downward relative to the footwall under tensional stress?
Thrust fault with an inclination angle less than 45 degrees
Strike-slip fault with purely horizontal displacement
Normal fault resulting from crustal extensional (tensional) forces
Reverse fault caused by lateral compressional stress
13.
STEM Immunology Question 13: Which immune cells are directly responsible for secreting perforin proteins and granzymes to lyse virally infected cells and tumor cells?
Helper T-cells (CD4+ Th) exclusively
Cytotoxic T-cells (CD8+ Tc) and Natural Killer (NK) cells
Mast cells releasing histamine
Plasma B-cells secreting IgG
14.
STEM Immunology Question 38: Which immune cells are directly responsible for secreting perforin proteins and granzymes to lyse virally infected cells and tumor cells?
Helper T-cells (CD4+ Th) exclusively
Mast cells releasing histamine
Plasma B-cells secreting IgG
Cytotoxic T-cells (CD8+ Tc) and Natural Killer (NK) cells
15.
STEM Immunology Question 14: Which immune cells are directly responsible for secreting perforin proteins and granzymes to lyse virally infected cells and tumor cells?
Helper T-cells (CD4+ Th) exclusively
Mast cells releasing histamine
Plasma B-cells secreting IgG
Cytotoxic T-cells (CD8+ Tc) and Natural Killer (NK) cells
16.
STEM Geology Question 30: Which type of geological fault is formed when hanging-wall rocks slide downward relative to the footwall under tensional stress?
Normal fault resulting from crustal extensional (tensional) forces
Reverse fault caused by lateral compressional stress
Thrust fault with an inclination angle less than 45 degrees
Strike-slip fault with purely horizontal displacement
17.
STEM Genetics Question 31: What is the minimum number of tRNA anticodons required to translate an mRNA transcript containing 150 codons, terminating with a UAG stop codon?
151 tRNA molecules
75 tRNA molecules
150 tRNA molecules
149 tRNA molecules (stop codons do not code for amino acids or tRNAs)
18.
STEM Genetics Question 10: What is the minimum number of tRNA anticodons required to translate an mRNA transcript containing 150 codons, terminating with a UAG stop codon?
149 tRNA molecules (stop codons do not code for amino acids or tRNAs)
150 tRNA molecules
151 tRNA molecules
75 tRNA molecules
19.
STEM Genetics Question 40: What is the minimum number of tRNA anticodons required to translate an mRNA transcript containing 150 codons, terminating with a UAG stop codon?
151 tRNA molecules
75 tRNA molecules
150 tRNA molecules
149 tRNA molecules (stop codons do not code for amino acids or tRNAs)
20.
STEM Immunology Question 41: Which immune cells are directly responsible for secreting perforin proteins and granzymes to lyse virally infected cells and tumor cells?
Plasma B-cells secreting IgG
Helper T-cells (CD4+ Th) exclusively
Cytotoxic T-cells (CD8+ Tc) and Natural Killer (NK) cells
Mast cells releasing histamine
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