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NECTA Biology – Tanzania

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Question 161

In human reproduction, where does fertilization usually occur?
ReproductionHuman reproductionmedium

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Question 162

What is the genotype ratio of offspring from a cross between two heterozygous pea plants (Tt × Tt) where T is dominant for tallness?
GeneticsMendelian inheritancemedium

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Question 163

Which factor is abiotic in an ecosystem?
EcologyEcosystemseasy

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Question 164

Which of the following best describes the role of enzymes in biological reactions?
Cell biologyEnzymes and metabolismmedium

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Question 165

Which of the following organelles is responsible for producing energy in the form of ATP in eukaryotic cells?
Cell biologyCell organelles and their functionseasy

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Question 166

Which nutrient is primarily responsible for the repair and growth of body tissues?
Nutrition and transportFunctions of nutrientseasy

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Question 167

In photosynthesis, which molecule acts as the primary pigment absorbing light energy?
Respiration and photosynthesisPhotosynthetic pigments and their rolesmedium

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Question 168

Which of the following is a characteristic feature of sexual reproduction?
ReproductionTypes of reproductioneasy

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Question 169

What is the expected phenotypic ratio in the F2 generation of a monohybrid cross between two heterozygous individuals?
GeneticsMonohybrid inheritance patternsmedium

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Question 170

Which process allows water to move upward from roots to leaves against gravity in plants?
Nutrition and transportTransport in plantsmedium

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