Biology 3 Jones, Pierce College, Exam
4(Final) fully solved
What four nucleotides are used by all life in their DNA? - correct answer ✔✔ Adenine, Thymine,
Guanine, Cytosin
DNA is___________ into RNA which is__________ into a polypeptide.
A gene is a sequence of_________ (on DNA) providing the code (instructions) for the
construction of a_________
. - correct answer ✔✔ Transcribed;
Translated
Nucleotides; Polypeptides(Proteins)
In the process of transcription, a copy (RNA - ribonucleic acid) is made of the gene in order to
deliver the code to the - correct answer ✔✔ Ribosomes
In the process of translation, the copied code (RNA) is read (decoded) in the process of
constructing a _____________. - correct answer ✔✔ polypeptide
Describe messenger RNA (mRNA) - correct answer ✔✔ Carries the "instructions" for the
building of amino acid chains (Polypeptides) that make proteis.
Describe ribosomal RNA (rRNA) - correct answer ✔✔ Binds with protein molecules to form
ribosomes.
Describe transfer RNA (tRNA ) - correct answer ✔✔ Smaller Units that bind individual Amino
Acids and bring them to the ribosome to be
, connected together in the order determined by the Mrna codons.
How many types of amino acids are used in translation? - correct answer ✔✔ 20
How many letters in the genetic code? - correct answer ✔✔ 4
How many combinations of 4 are required to produce 20 varieties of amino acids? - correct
answer ✔✔ 4^1=4,4^2=16,4^3=64 Enough , with extras
Which amino acid is specified by the codon AUG? - correct answer ✔✔ Methionine ( M ) - Start
Codon
Which amino acid is specified by the codon CUU? - correct answer ✔✔ Leucine ( L )
Substitution Mutations - correct answer ✔✔ Type of mutation in which a single nucleotide
changes
Silent Mutations - correct answer ✔✔ No change in A.A. sequence ( synonymous )
Missense Mutations - correct answer ✔✔ Codon with mutation codes for a different A.A.
(neutral, advantage, or harmful
Nonsense Mutations - correct answer ✔✔ Codon with mutation codes for a STOP ( ussualy
harmfull )
What is a characteristic? - correct answer ✔✔ A heritable feature ( hair color )
What is a Trait? - correct answer ✔✔ Genitcaly determined
4(Final) fully solved
What four nucleotides are used by all life in their DNA? - correct answer ✔✔ Adenine, Thymine,
Guanine, Cytosin
DNA is___________ into RNA which is__________ into a polypeptide.
A gene is a sequence of_________ (on DNA) providing the code (instructions) for the
construction of a_________
. - correct answer ✔✔ Transcribed;
Translated
Nucleotides; Polypeptides(Proteins)
In the process of transcription, a copy (RNA - ribonucleic acid) is made of the gene in order to
deliver the code to the - correct answer ✔✔ Ribosomes
In the process of translation, the copied code (RNA) is read (decoded) in the process of
constructing a _____________. - correct answer ✔✔ polypeptide
Describe messenger RNA (mRNA) - correct answer ✔✔ Carries the "instructions" for the
building of amino acid chains (Polypeptides) that make proteis.
Describe ribosomal RNA (rRNA) - correct answer ✔✔ Binds with protein molecules to form
ribosomes.
Describe transfer RNA (tRNA ) - correct answer ✔✔ Smaller Units that bind individual Amino
Acids and bring them to the ribosome to be
, connected together in the order determined by the Mrna codons.
How many types of amino acids are used in translation? - correct answer ✔✔ 20
How many letters in the genetic code? - correct answer ✔✔ 4
How many combinations of 4 are required to produce 20 varieties of amino acids? - correct
answer ✔✔ 4^1=4,4^2=16,4^3=64 Enough , with extras
Which amino acid is specified by the codon AUG? - correct answer ✔✔ Methionine ( M ) - Start
Codon
Which amino acid is specified by the codon CUU? - correct answer ✔✔ Leucine ( L )
Substitution Mutations - correct answer ✔✔ Type of mutation in which a single nucleotide
changes
Silent Mutations - correct answer ✔✔ No change in A.A. sequence ( synonymous )
Missense Mutations - correct answer ✔✔ Codon with mutation codes for a different A.A.
(neutral, advantage, or harmful
Nonsense Mutations - correct answer ✔✔ Codon with mutation codes for a STOP ( ussualy
harmfull )
What is a characteristic? - correct answer ✔✔ A heritable feature ( hair color )
What is a Trait? - correct answer ✔✔ Genitcaly determined
