Portage BIOD 101 Module 4 | Questions with 100% Verified
Answers | Latest Update 2026/2027
Question: Nitrogenous bases of DNA
Answer: Adenine
Guanine
Thymine
Cytosine
Question: Contain 2 carbon-nitrogen rings, and 4 nitrogen atoms
Answer: Purines - A and G
Question: Contain 1 carbon-nitrogen ring, and 2 nitrogen atoms
Answer: Pyramidines - T and C
Question: Deoxyribose
Answer: sugar chemically linked to each base in DNA
Question: Nucleoside
Answer: base + deoxyribose
Question: Nucleotide
Answer: base + deoxyribose + phosphate group
Question: complementary pairs
Answer: purine always pairs with pyramidine
(T+A), (C+G)
Question: Occur when 2 negatively charged atoms share a hydrogen
atom
Answer: Hydrogen bonds
Question: # of hydrogen bonds between A and T
Answer: two
Question: # of hydrogen bonds between C and G
Answer: three
Question: sequence
Answer: specified linear arrangement of nucleotides linked to the polynucleotide chains of
DNA.
Defines the entire organism
, Question: end terminating with a phosphate group
Answer: 5' (five prime) end
Question: end terminating with a hydroxyl group
Answer: 3' (three prime) end
Question: antiparallel arrangement
Answer: one side of the helix runs in the opposite (5'-3') direction of the other (3'-5)
Question: Genome
Answer: entire sequence of paired bases in DNA
Question: histone proteins
Answer: A simple protein bound to DNA, involved in the coiling of chromosomes
Question: Chromatin
Answer: DNA sequences and their associated proteins
Question: Chromosomes
Answer: structures of packaged chromatin complexes
Question: Somatic cell
Answer: All of the body's cells except gametes
Question: Number of chromosomes in each somatic cell
Answer: 46 (23 pairs)
Question: Cell cycle
Answer: Process of parent cell replicating its genetic info and dividing into 2 new daughter
cells
Question: cytokinesis
Answer: division of the cytoplasm
Question: interphase
Answer: G1, S, G2 phases. 90% of cycle time.
Question: Gap phase 1
Answer: First phase, growth phase
Question: Messenger RNA (mRNA)
Answer: transfers genetic info from DNA to ribosomes
Answers | Latest Update 2026/2027
Question: Nitrogenous bases of DNA
Answer: Adenine
Guanine
Thymine
Cytosine
Question: Contain 2 carbon-nitrogen rings, and 4 nitrogen atoms
Answer: Purines - A and G
Question: Contain 1 carbon-nitrogen ring, and 2 nitrogen atoms
Answer: Pyramidines - T and C
Question: Deoxyribose
Answer: sugar chemically linked to each base in DNA
Question: Nucleoside
Answer: base + deoxyribose
Question: Nucleotide
Answer: base + deoxyribose + phosphate group
Question: complementary pairs
Answer: purine always pairs with pyramidine
(T+A), (C+G)
Question: Occur when 2 negatively charged atoms share a hydrogen
atom
Answer: Hydrogen bonds
Question: # of hydrogen bonds between A and T
Answer: two
Question: # of hydrogen bonds between C and G
Answer: three
Question: sequence
Answer: specified linear arrangement of nucleotides linked to the polynucleotide chains of
DNA.
Defines the entire organism
, Question: end terminating with a phosphate group
Answer: 5' (five prime) end
Question: end terminating with a hydroxyl group
Answer: 3' (three prime) end
Question: antiparallel arrangement
Answer: one side of the helix runs in the opposite (5'-3') direction of the other (3'-5)
Question: Genome
Answer: entire sequence of paired bases in DNA
Question: histone proteins
Answer: A simple protein bound to DNA, involved in the coiling of chromosomes
Question: Chromatin
Answer: DNA sequences and their associated proteins
Question: Chromosomes
Answer: structures of packaged chromatin complexes
Question: Somatic cell
Answer: All of the body's cells except gametes
Question: Number of chromosomes in each somatic cell
Answer: 46 (23 pairs)
Question: Cell cycle
Answer: Process of parent cell replicating its genetic info and dividing into 2 new daughter
cells
Question: cytokinesis
Answer: division of the cytoplasm
Question: interphase
Answer: G1, S, G2 phases. 90% of cycle time.
Question: Gap phase 1
Answer: First phase, growth phase
Question: Messenger RNA (mRNA)
Answer: transfers genetic info from DNA to ribosomes
