BIOD101 MODULE 4 Questions with
100% Correct Answers
purines Correct Answer: 2 carbon-nitrogen rings and 4 nitrogen bonds
pyrimidines Correct Answer: one carbon-nitrogen ring and 2 nitrogen bonds
adenine and guanine Correct Answer: purines
thymine and cytosine Correct Answer: pyrimidines
nucleotide Correct Answer: nitrogenous base + deoxyribose + phosphate group
adenine + thymine Correct Answer: 2 hydrogen bonds
guanine + cytosine Correct Answer: 3 hydrogen bonds
hydrogen bonds Correct Answer: 2 negatively charged atoms share a
hydrogen atom- very weak
sequence Correct Answer: nucleotides are linked to the polynucleotide chain,
which is ordered in a specific linear arrangement- defines entire organism
polarity Correct Answer: determined by the direction the nucleotide rungs are
facing
5 prime Correct Answer: ends in phosphate group
3 prime Correct Answer: ends with hydroxyl group
antiparalell Correct Answer: oriented with one strand being in 5' -> 3' and other
strand in 3' -> 5'
, genome Correct Answer: entire sequence of paired bases
histone protiens Correct Answer: necessary for DNA replication- packaged with
tightly coiled sequences
chromatin Correct Answer: sequences and associated proteins
chromosomes Correct Answer: folded DNA
somatic cells Correct Answer: all body cells except gametes
cell cycle Correct Answer: the process of a parent cell replicating its genetic
info and physically dividing into 2 daughter cells
mitosis Correct Answer: growth, repair, and to maintain surface volume ratio
meiosis Correct Answer: produce gametes
interphase Correct Answer: includes everything except active division and
accounts for 90% of time needed to complete cell cycle
Gap phase 1 Correct Answer: 1st step of cell cycle- growth phase- produces
proteins needed for DNA synthesis and mRNA
mRNA Correct Answer: transfers genetic information from DNA to ribosomes (site
of protein synthesis)- responsible for specifying amino acid sequences used to
build proteins
S-phase Correct Answer: step 2 of cell cycle- DNA synthesis- DNA is duplicated
Gap phase 2 Correct Answer: step 3 of cell cycle- another period of growth as
cell begins to synthesize proteins and organelles necessary for mitosis- "double
checks"
100% Correct Answers
purines Correct Answer: 2 carbon-nitrogen rings and 4 nitrogen bonds
pyrimidines Correct Answer: one carbon-nitrogen ring and 2 nitrogen bonds
adenine and guanine Correct Answer: purines
thymine and cytosine Correct Answer: pyrimidines
nucleotide Correct Answer: nitrogenous base + deoxyribose + phosphate group
adenine + thymine Correct Answer: 2 hydrogen bonds
guanine + cytosine Correct Answer: 3 hydrogen bonds
hydrogen bonds Correct Answer: 2 negatively charged atoms share a
hydrogen atom- very weak
sequence Correct Answer: nucleotides are linked to the polynucleotide chain,
which is ordered in a specific linear arrangement- defines entire organism
polarity Correct Answer: determined by the direction the nucleotide rungs are
facing
5 prime Correct Answer: ends in phosphate group
3 prime Correct Answer: ends with hydroxyl group
antiparalell Correct Answer: oriented with one strand being in 5' -> 3' and other
strand in 3' -> 5'
, genome Correct Answer: entire sequence of paired bases
histone protiens Correct Answer: necessary for DNA replication- packaged with
tightly coiled sequences
chromatin Correct Answer: sequences and associated proteins
chromosomes Correct Answer: folded DNA
somatic cells Correct Answer: all body cells except gametes
cell cycle Correct Answer: the process of a parent cell replicating its genetic
info and physically dividing into 2 daughter cells
mitosis Correct Answer: growth, repair, and to maintain surface volume ratio
meiosis Correct Answer: produce gametes
interphase Correct Answer: includes everything except active division and
accounts for 90% of time needed to complete cell cycle
Gap phase 1 Correct Answer: 1st step of cell cycle- growth phase- produces
proteins needed for DNA synthesis and mRNA
mRNA Correct Answer: transfers genetic information from DNA to ribosomes (site
of protein synthesis)- responsible for specifying amino acid sequences used to
build proteins
S-phase Correct Answer: step 2 of cell cycle- DNA synthesis- DNA is duplicated
Gap phase 2 Correct Answer: step 3 of cell cycle- another period of growth as
cell begins to synthesize proteins and organelles necessary for mitosis- "double
checks"
