REVIEW GRADE 9

This nonmendelian inheritance is observed when two different traits are both physically present in an individual or offspring.

• Codominance

• Multiple alleles

• Incomplete Dominance

• Sex-linked Inheritance

Which of the following does not belong to the group?

• Lymphocytes

• Monocytes

• Thrombocytes

• Neutrophil

Food and air share a common passage before separating into the esophagus and trachea. If this part were blocked, both swallowing and breathing would be affected. Which organ is this?

• Larynx

• Trachea

• Pharynx

• Esophagus

When a tall pea plant (TT) is crossed with a short pea plant (tt), all offspring in the first generation (F₁) are tall. Which principle of heredity explains why the tall trait appears while the short trait seems hidden?

• Law of Segregation

• Law of Independent Assortment

• Law of Dominance

• Law of Incomplete Dominance

Genetic engineering follows a specific order of steps to successfully modify an organism's DNA. Which of the following shows the correct sequence?

• Transformation - DNA isolation - Infection - Cloning - Selection - Ligation

• DNA isolation - Ligation - Transformation - Cloning - Selection - Infection

• Ligation - DNA isolation - Cloning - Infection - Selection - Transformation

• DNA isolation - Transformation - Ligation - Selection - Infection - Cloning

Which option correctly groups the benefits and risks of genetic engineering?

• Benefits: Reduced Biodiversity, Allergic Reactions, Decreased Pesticide Effectivity, High Cost for GM Seeds

  Risks: Improved Nutrition, Disease Detection, Increase Productivity, Cheaper Medicines

• Benefits: Improved Nutrition, Disease Detection, Increase Productivity, Cheaper Medicines

  Risks: Reduced Biodiversity, Allergic Reactions, Decreased Pesticide Effectivity, High Cost for GM Seeds

• Benefits: Improved Nutrition, Reduced Biodiversity, Allergic Reactions, High Cost for GM Seeds

  Risks: Disease Detection, Increase Productivity, Cheaper Medicines, Decreased Pesticide Effectivity

• Benefits: Decreased Pesticide Effectivity, Reduced Biodiversity, Allergic Reactions, High Cost for GM Seeds

  Risks: Improved Nutrition, Cheaper Medicines, Increase Productivity, Disease Detection

Scientists have identified five major mass extinction events in Earth's history. Which option shows the correct chronological order from the oldest to the most recent?

• Triassic → Ordovician → Permian → Devonian → Cretaceous

• Ordovician → Devonian → Permian → Triassic → Cretaceous

• Permian → Ordovician → Triassic → Devonian → Cretaceous

• Devonian → Cretaceous → Triassic → Ordovician → Permian

In photosynthesis, which process captures solar energy, splits water to release oxygen, and produces ATP and NADPH that will later power the Calvin Cycle?

• Calvin Cycle

• Light Reactions

• Cellular Respiration

• Fermentation

In photosynthesis, one pathway of the light reactions involves both Photosystem II and Photosystem I. This pathway produces ATP, NADPH, and releases oxygen from the splitting of water. Which process is being described?

• Cyclic Photophosphorylation

• Noncyclic Photophosphorylation

• Calvin Cycle

• Fermentation

Renewable resources are those that can naturally replenish over time. Which set correctly lists only renewable resources?

• Soil, Trees, Rocks, Air, Water, Wildlife

• Soil, Trees, Coal, Air, Wildlife, Water

• Trees, Oil, Water, Wildlife, Air, Minerals

• Rocks, Soil, Natural Gas, Air, Wildlife, Water