FINAL EXAM DOCX VERSION A BIOLOGY
ATHABASCA UNIVERSITY
COMPREHENSIVE SCRIPT 2026 COMPLETE
QUESTIONS AND SOLUTIONS GRADED A+
⩥ How is RNA different from DNA? Answer: RNA- Ribose/DNA-
Deoxyribose
RNA- Single Stranded/DNA- Double stranded
RNA- Uracil/DNA- Thymine
⩥ (1) What is the purpose of transcription? (2) Where does it occur? (3)
What nucleic acids are involved? Answer: (1) Make RNA copies of
genes
(2) Nucleus
(3) DNA, mRNA
⩥ (1) What is the purpose of translation? Where does it occur? What
nucleic acids are involved? Answer: (1) Make proteins
(2) Ribosomes
(3) DNA, mRNA, tRNA, rRNA
⩥ (1) What is a mutation? (2) What is a mutagen? Answer: (1) Change
in a DNA sequence
, (2) Agent that can cause a change in DNA
⩥ Contrast a point mutation with a frameshift mutation. Answer: Point
Mutation- change in a single base pair in DNA.
Frameshift Mutation- Single base is added/deleted from DNA
⩥ What occurs during translocation of a chromosome? Answer: Part of
one chromosome breaks off and is added to a different chromosome
⩥ What does a pedigree show? Answer: Graphic representation of
genetic inheritance
⩥ (1) What is incomplete dominance? (2) Give an example found in
plants. Answer: (1) Phenotype of heterozygous individuals is
intermediate between those of the two homozygous
(2) Red rose + White rose = pink rose
⩥ What is codominance? Answer: Phenotypes of both homozygotes to
be produced in heterozygous individuals
⩥ What are multiple alleles? Answer: Traits controlled by 2 or more
alleles
ATHABASCA UNIVERSITY
COMPREHENSIVE SCRIPT 2026 COMPLETE
QUESTIONS AND SOLUTIONS GRADED A+
⩥ How is RNA different from DNA? Answer: RNA- Ribose/DNA-
Deoxyribose
RNA- Single Stranded/DNA- Double stranded
RNA- Uracil/DNA- Thymine
⩥ (1) What is the purpose of transcription? (2) Where does it occur? (3)
What nucleic acids are involved? Answer: (1) Make RNA copies of
genes
(2) Nucleus
(3) DNA, mRNA
⩥ (1) What is the purpose of translation? Where does it occur? What
nucleic acids are involved? Answer: (1) Make proteins
(2) Ribosomes
(3) DNA, mRNA, tRNA, rRNA
⩥ (1) What is a mutation? (2) What is a mutagen? Answer: (1) Change
in a DNA sequence
, (2) Agent that can cause a change in DNA
⩥ Contrast a point mutation with a frameshift mutation. Answer: Point
Mutation- change in a single base pair in DNA.
Frameshift Mutation- Single base is added/deleted from DNA
⩥ What occurs during translocation of a chromosome? Answer: Part of
one chromosome breaks off and is added to a different chromosome
⩥ What does a pedigree show? Answer: Graphic representation of
genetic inheritance
⩥ (1) What is incomplete dominance? (2) Give an example found in
plants. Answer: (1) Phenotype of heterozygous individuals is
intermediate between those of the two homozygous
(2) Red rose + White rose = pink rose
⩥ What is codominance? Answer: Phenotypes of both homozygotes to
be produced in heterozygous individuals
⩥ What are multiple alleles? Answer: Traits controlled by 2 or more
alleles
