Heredity

1
Heredity

• Grade 5 Standard 4 - Heredity
• Conceptual Strand 4 Plants and animals reproduce
  and transmit hereditary information between
  generations.
• Guiding Question 4 What are the principal
  mechanisms by which living things reproduce and
  transmit information between parents and
  offspring?
• GLE 0507.4.1 Describe how genetic information is
  passed from parents to offspring during
  reproduction.
• GLE 0507.4.2 Recognize that some characteristics
  are inherited while others result
  frominteractions with the environment.
• 0507.4.1 Explain how genetic information is
  transmitted from parents to offspring
• 0507.4.2 Create a chart that compares hereditary
  and environmental traits.
• 0507.4.3 Distinguish between a scar and a
  birthmark in terms of their origins.
• SPI 0507.4.1 Recognize that information is passed
  from parent to offspring during reproduction.
• SPI 0507.4.2 Distinguish between inherited traits
  and those that can be attributed to the
  environment.

2
Adaptation

• A trait or characteristic that helps an organism
  survive in its environment

3
Chromosome

• A threadlike structure in the nucleus, made up of
  DNA

4
DNA

• DNA is a long fiber, like a hair, only thinner
  and longer.  It is made from two strands that
  stick together with a slight twist.

5
Dominant

• A trait expressed when an organism receives genes
  for two different forms of a trait

6
Environment

• All the living and nonliving things that surround
  and affect an organism

7
Gene

• A short segment of DNA that determines one of an
  organisms inherited traits

8
Heredity (Inherited Trait)

• A characteristic passed from parents to their
  offspring

9
Hybrid

• An organism that has two different genes for the
  same trait

10
Instinct

• A behavior that an organism inherits

11
Learned Behavior

• A behavior that an animal acquires through
  experience

12
Life Cycle

• The stages that a living thing passes through as
  it grows and changes
• The Life Cycle of Frogs

13
Mitosis

• The process by which most cells divide

14
Mutation

• A change in the genes of an organism

15
Nucleotide

• The basic structural unit of DNA

16
Recessive

• A trait not expressed when an organism receives
  genes for two different forms of a trait

17
Selective Breeding

• The practice of breeding plants and animals for
  desired traits

18
Sexual Reproduction

• The production of offspring by the union of male
  and female gametes

19
Asexual Reproduction

• Production of offspring from only one parent