About this Study Set
This study set covers Bioinformatics And Anatomy through
18 practice questions.
An exploration of biological encoding, genetic sequences, and medical terminology systems. Every question includes the correct answer so you can learn as you go — pick any format above to get started.
Questions & Answers
Browse all 18 questions from the
Biological Codes and Ciphers study set below.
Each question shows the correct answer — select a study format above to practice interactively.
1
Which molecule acts as the primary 'code' for storing hereditary information in humans?
-
A
RNA
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B
DNA
-
C
ATP
-
D
Hemoglobin
2
What is the standard system used internationally for classifying and coding medical diagnoses?
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A
ICD
-
B
DNA-seq
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C
BLAST
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D
HTTP
3
In the genetic code, a sequence of three nucleotides, known as a codon, specifies which building block of proteins?
-
A
Glucose
-
B
Amino acid
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C
Fatty acid
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D
Vitamin
4
Which nucleotide base pairs specifically with Adenine (A) in the DNA double helix structure?
-
A
Cytosine
-
B
Guanine
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C
Thymine
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D
Uracil
5
What medical coding system is specifically used in Australia to classify clinical procedures?
-
A
ACHI
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B
DSM-5
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C
SNOMED
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D
LOINC
6
Which process involves decoding messenger RNA into a polypeptide chain?
-
A
Replication
-
B
Transcription
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C
Translation
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D
Mutation
7
In the context of the human nervous system, what is the 'cipher' or method used for transmitting signals between neurons?
-
A
Binary code
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B
Action potentials
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C
Fiber optics
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D
Radio waves
8
Which component of the human genome is considered the 'non-coding' region, despite its role in regulation?
-
A
Exons
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B
Introns
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C
Ribosomes
-
D
Codons
9
What biological molecule performs the task of transcribing DNA into mRNA?
-
A
DNA polymerase
-
B
RNA polymerase
-
C
Helicase
-
D
Ligase
10
The Human Genome Project successfully 'decoded' the sequence of how many base pairs?
-
A
1 million
-
B
3 billion
-
C
100 billion
-
D
500 thousand
11
Which international coding standard is used to encode clinical medical terms for electronic health records?
-
A
SNOMED CT
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B
Morse Code
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C
ASCII
-
D
Base64
12
How many total pairs of chromosomes are typically found in a standard human somatic cell?
13
Which substance in the blood uses a 'code' of surface proteins to determine a person's ABO blood group?
-
A
Plasma
-
B
Red blood cells
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C
Platelets
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D
White blood cells
14
What is the primary function of the mitochondrial DNA, which is inherited differently than nuclear DNA?
-
A
Cellular respiration
-
B
Protein synthesis
-
C
Cell division
-
D
Signal transduction
15
In immunology, what 'cipher' do B-cells use to identify specific pathogens?
-
A
Antigens
-
B
Antibodies
-
C
Histamines
-
D
Platelets
16
Which nitrogenous base is replaced by Uracil during the transcription of RNA?
-
A
Adenine
-
B
Guanine
-
C
Thymine
-
D
Cytosine
17
What term describes a permanent change in the DNA sequence 'code' that can be inherited?
-
A
Translation
-
B
Mutation
-
C
Expression
-
D
Transcription
18
What structure acts as the 'decoder' or reader of mRNA during protein synthesis within the cell?
-
A
Ribosome
-
B
Nucleus
-
C
Lysosome
-
D
Mitochondrion
