Genetics and Cell Biology Fundamentals

From the study guide

Course Outline

  1. DNA structure and base pairing
  2. Genes, chromosomes and karyotypes
  3. Mitosis, meiosis and fertilisation
  4. Inheritance and Punnett squares
  5. Mutations and genetic disorders
  6. Cell theory and cell types
  7. Cell organelles and functions
  8. Surface area and cell size
  9. Scientific investigations and variables
  10. Bioethics and genetic engineering
  11. Cloning and DNA editing

1. DNA structure and base pairing

Key Concepts & Definitions

  • Deoxyribonucleic acid: Deoxyribonucleic acid is a nucleic acid that carries genetic code and is located in the nucleus of cells.
  • Nucleotide: A nucleotide is a DNA subunit made of deoxyribose sugar, a phosphate group, and a nitrogenous base.
  • Chargaff’s rule: Chargaff’s rule states that in DNA adenine pairs with thymine and cytosine pairs with guanine.
  • DNA double helix: A DNA double helix is a double-stranded, helical structure where the strands are twisted around each other.
  • Hydrogen bonding: Hydrogen bonding is the attraction between DNA bases that holds complementary pairs together.

Essential Points

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Practice quiz preview

1. What is the correct base-pairing rule in double-stranded DNA?

2. Which statement best describes a DNA nucleotide?

3. What is a gene?

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Flashcard preview

DNA structure — base pairing?

A pairs with T; C pairs with G.

Genes — function?

Carry instructions for specific proteins.

Chromosomes — composition?

DNA tightly coiled with proteins.

Karyotype — purpose?

Displays chromosome number and structure.

Mitosis — outcome?

Genetically identical diploid cells.

Meiosis — purpose?

Produce haploid gametes for reproduction.

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Frequently asked questions

What does the Genetics and Cell Biology Fundamentals study guide cover?

It covers the core concepts of Genetics and Cell Biology Fundamentals, organized by topic with the key definitions, explanations and takeaways, so it's easier to learn and remember.

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How many questions are in the Genetics and Cell Biology Fundamentals quiz?

The practice quiz has 22 multiple-choice questions, each with an explanation. Use it to check what you know and find your gaps.

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How do I study Genetics and Cell Biology Fundamentals with flashcards?

There are 22 flashcards on Genetics and Cell Biology Fundamentals, with a question on the front and the answer on the back. Try to recall each answer before you flip, and let spaced repetition bring back the ones you miss.

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