Genetic Engineering
Which statement best describes recombinant DNA?
A. DNA that naturally mutates within a single organism.
B. DNA found only in bacteria and viruses.
C. DNA that results from selective breeding.
D. DNA formed by combining genetic material from different biological sources.
D. DNA formed by combining genetic material from different biological sources.
What crop is an example of recombinant DNA use to improve VITAMIN A intake?
GOLDEN RICE
The Earth formed about how many years ago?
4.6 BILLION YEARS AGO
WHAT PLANET COLLIDED WITH EARLY EARTH?
THEIA
What mechanism of evolution involves a direct change in the DNA sequence?
A. Artificial Selection
B. Evolution
C. Genetic variation
D. Mutation
D. Mutation
Which method is mainly used to introduce DNA into plant cells?
A. Electroporation
B. Microinjection
C. Heat shock
D. Biolistics
D. Biolistics
Which industry benefits most when bacteria are engineered to produce hormones?
A. Food industry
B. Pharmaceutical industry
C. Agricultural industry
D. Medical diagnostics
B. Pharmaceutical industry
What event marks the largest mass extinction in Earth’s history?
A. Permian extinction
B. Cambrian explosion
C. Devonian diversification
D. Cretaceous Paleogene extinction
A. Permian extinction
THE FIRST AMPHIBIANS IS SEEN DURING THIS TIME.
A. DEVONIAN
B. PERMIAN
C. HEDEAN
D. PROTEROZOIC
A. DEVONIAN
What term describes differences in DNA among individuals in a population?
A. Artificial Selection
B. Evolution
C. Genetic variation
D. Mutation
C. Genetic variation
Which type involves gene-level manipulation?
A. CLASSICAL BREEDING
B. CROSS POLLINATION
C. NATURAL MUTATION
D. RECOMBINANT DNA TECHNOLOGY
D. RECOMBINANT DNA TECHNOLOGY
What conclusion can be drawn if a country adopts recombinant DNA technology across food and medicine sectors?
A. Biodiversity will completely disappear.
B. Food production will rely only on chemicals.
C. Human health and food efficiency may improve.
D. Traditional farming will immediately stop.
C. Human health and food efficiency may improve.
WE ARE NOW IN WHAT PERIOD?
QUATERNARY PERIOD
OTHER TERM USED TO DESCRIBE THE MESOZOIC ERA
AGE OF REPTILES
What mechanism best explains why siblings look different from each other?
A. Gene flow
B. Non-random mating
C. Mutation
D. Recombination
D. Recombination
Which term refers to an organism that contains recombinant DNA?
A. Hybrid organism
B. Transgenic organism
C. Clonal organism
D. Somatic organism
B. Transgenic organism
Why is recombinant DNA technology considered important in medical research?
A. It increases crop yield and nutrition
B. It replaces traditional breeding methods
C. It allows the study and treatment of genetic diseases
D. It prevents all inherited disorders
C. It allows the study and treatment of genetic diseases
What major change occurred because of the oxygen buildup in Earth’s atmosphere?
A. The Cambrian explosion began
B. The Proterozoic Eon started
C. The Mesozoic Era emerged
D. The Quaternary Period developed
B. The Proterozoic Eon started
PANGAEA FORMS DURING WHAT PERIOD?
A. CAMBRIAN
B. PERMIAN
C. ORDOVISIAN
D. SILURIAN
B. PERMIAN
Why does genetic variation matter in a population?
A. It prevents mutation from occurring.
B. It allows individuals to become identical.
C. It provides differences that selection can act on.
D. It keeps gene frequency constant.
C. It provides differences that selection can act on.
What do you call the practice of mating or breeding selected organisms with desirable traits?
CLASSICAL BREEDING
What recombinant DNA application would most likely reduce the need for chemical pesticides?
A. DNA fingerprinting
B. Gene therapy
C. Production of vaccines
D. Development of Bt corn
D. Development of Bt corn
FIRST LAND PLANTS ARE SEEN DURING THIS TIME
ORDOVICIAN
As oxygen began to increase because of photosynthetic bacteria. It causes what?
GREAT OXYGEN CATASTROPHE
How does gene flow affect a population?
A. It removes all genetic variation.
B. It always increases survival chances.
C. It stops evolution from happening.
D. It changes the gene pool by mixing genes.
D. It changes the gene pool by mixing genes.