USABO Open Exam study guide , Most Recent Version
2025/2026 Actual Complete Real Exam Questions And Correct
Answers (Verified Answers) Already Graded A+ / Newest Exam
/ Just Released!!
Ethylene - ANSWER-Plant hormone regulating growth and
development.
Triple response - ANSWER-Plant growth response to
mechanical stress or
touch.
Ethylene receptor - ANSWER-Protein involved in sensing and
responding to
ethylene.
Arabidopsis - ANSWER-Genus of flowering plants used as a
model organism in
plant
biology.
Teosinte - ANSWER-Wild grass species, ancestor of modern
maize.
tb1 gene - ANSWER-Gene regulating branching and ear
development in corn.
, RNA microarray - ANSWER-Technology used to measure
gene expression
levels for thousands of genes
simultaneously.
Nitrogen fixation - ANSWER-Conversion of atmospheric
nitrogen into ammonia
by nitrogen-fixing
bacteria.
Heartwood - ANSWER-Innermost wood in the trunk of a tree,
inactive and older.
Animal development lab - ANSWER-Research facility studying
embryonic and
post-embryonic development in
animals.
Sea urchin - ANSWER-Marine echinoderm with a spherical
body enclosed in a
rigid shell of
spines.
CRISPR/Cas9 - ANSWER-Genome editing technology used
to alter DNA
sequences and modify gene
function.
2025/2026 Actual Complete Real Exam Questions And Correct
Answers (Verified Answers) Already Graded A+ / Newest Exam
/ Just Released!!
Ethylene - ANSWER-Plant hormone regulating growth and
development.
Triple response - ANSWER-Plant growth response to
mechanical stress or
touch.
Ethylene receptor - ANSWER-Protein involved in sensing and
responding to
ethylene.
Arabidopsis - ANSWER-Genus of flowering plants used as a
model organism in
plant
biology.
Teosinte - ANSWER-Wild grass species, ancestor of modern
maize.
tb1 gene - ANSWER-Gene regulating branching and ear
development in corn.
, RNA microarray - ANSWER-Technology used to measure
gene expression
levels for thousands of genes
simultaneously.
Nitrogen fixation - ANSWER-Conversion of atmospheric
nitrogen into ammonia
by nitrogen-fixing
bacteria.
Heartwood - ANSWER-Innermost wood in the trunk of a tree,
inactive and older.
Animal development lab - ANSWER-Research facility studying
embryonic and
post-embryonic development in
animals.
Sea urchin - ANSWER-Marine echinoderm with a spherical
body enclosed in a
rigid shell of
spines.
CRISPR/Cas9 - ANSWER-Genome editing technology used
to alter DNA
sequences and modify gene
function.
