Genetics: Chapter 5 - Heredity and Traits

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Questions and Answers

Which of the following best describes the term 'heredity'?

  • The process of cell division in offspring.
  • The passing of traits from parent to offspring. (correct)
  • The genetic makeup of an organism.
  • The study of how traits are inherited.

Genetics is the study of how traits are passed from one generation to the next.

True (A)

Who is often referred to as the 'father of genetics'?

Gregor Mendel

__________ occurs when pollen from one plant lands on a flower of the same plant.

<p>Self-pollination</p> Signup and view all the answers

What is the definition of cross-pollination?

<p>The transfer of pollen to a flower on a different plant. (A)</p> Signup and view all the answers

A true breeding plant will always produce offspring with traits that match the parent when self-pollinated.

<p>True (A)</p> Signup and view all the answers

Why did Mendel choose to study pea plants?

<p>They have traits that can be easily studied. (C)</p> Signup and view all the answers

Which of the following is NOT listed as a reason Mendel studied pea plants?

<p>They are resistant to diseases. (C)</p> Signup and view all the answers

In what decade did Gregor Mendel perform his experiments?

<p>1850s</p> Signup and view all the answers

Match the following terms with their definitions:

<p>Heredity = The passing of traits from parent to offspring Genetics = The study of how traits are passed from parent to offspring Self-pollination = Pollen from one plant lands on a flower of the same plant Cross-pollination = Pollen from one plant reaches a flower on a different plant</p> Signup and view all the answers

Flashcards

Heredity

The passing of traits from parents to offspring.

Genetics

The study of how traits are passed from parents to offspring.

Gregor Mendel

Austrian monk, gardener, and scientist who performed experiments in the 1850s to understand inheritance.

Self-pollination

When pollen from one plant lands on a flower of the same plant.

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Cross-pollination

When pollen from one plant reaches a flower on a different plant.

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True-breeding plants

Plants that, when self-pollinated, always produce offspring with traits that match the parent.

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Why did Mendel use pea plants?

Pea plants reproduce quickly and have easily studied traits, allowing for controlled reproduction.

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Study Notes

  • Genetics: Chapter 5 Lesson 1

Heredity

  • Passing of traits from parent to offspring.

Genetics

  • Study of how traits are passed from parent to offspring.

Gregor Mendel

  • Austrian monk, gardener, and scientist
  • Performed experiments in the 1850s to answer questions on how traits are inherited
  • Known as the father of genetics

Why Mendel Studied Pea Plants

  • Reproduce quickly: Can grow many and collect data
  • Easily Studied Traits: Such as cob shape and height
  • Controlled Reproduction: Ability to control which pairs of plants reproduced

Pollination of Pea Plants

  • Self Pollination: Pollen from one plant lands on a flower of the same plant
  • Cross Pollination: Pollen from one plant reaches a flower on a different plant; occurs through wind, bees, or similar insects

True Breeding Plants

  • Mendel started his experiments with true breeding plants to test specific traits
  • True breeding plant self pollination always produces an offspring with traits that match the parents

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