TOEFL Junior Reading Practice

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One of the most loved topics in Biology is the study of genetics, unraveling the mysteries of heredity and variation. Genetics explores how traits are passed from one generation to the next through genes, located on chromosomes within the cell nucleus. It encompasses fascinating concepts like DNA replication, gene expression, and the role of mutations in evolution. Understanding genetics not only sheds light on human inheritance patterns but also offers insights into the diversity of life on Earth.

Multiple Choice Questions:

  1. What is the fundamental unit of heredity?

  • a) Cell

  • b) Chromosome

  • c) Gene

  • d) Protein

  1. Where are genes located within a cell?

  • a) Cytoplasm

  • b) Nucleus

  • c) Mitochondria

  • d) Cell membrane

  1. Which molecule carries genetic information?

  • a) RNA

  • b) DNA

  • c) Protein

  • d) Lipid

  1. What process ensures genetic diversity during reproduction?

  • a) Mitosis

  • b) Meiosis

  • c) Transcription

  • d) TranslationWhatever

  1. What causes variations in offspring?

  • a) Mutation

  • b) Homozygosity

  • c) Inbreeding

  • d) Natural selection



1. Answer: c) Gene 2. Answer: b) Nucleus 3. Answer: b) DNA 4. Answer: b) Meiosis 5. Answer: a) Mutation.

Location: Mogalturu, Andhra Pradesh, India

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