Transcript Heredity
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 Adaptation A trait or characteristic that helps an organism survive in its environment Chromosome A threadlike structure in the nucleus, made up of DNA 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. Dominant A trait expressed when an organism receives genes for two different forms of a trait Environment All the living and nonliving things that surround and affect an organism Gene A short segment of DNA that determines one of an organism’s inherited traits Heredity (Inherited Trait) A characteristic passed from parents to their offspring Hybrid An organism that has two different genes for the same trait Instinct A behavior that an organism inherits Learned Behavior A behavior that an animal acquires through experience Life Cycle The stages that a living thing passes through as it grows and changes The Life Cycle of Frogs Mitosis The process by which most cells divide Mutation A change in the genes of an organism Nucleotide The basic structural unit of DNA Recessive A trait not expressed when an organism receives genes for two different forms of a trait Selective Breeding The practice of breeding plants and animals for desired traits Sexual Reproduction The production of offspring by the union of male and female gametes Asexual Reproduction Production of offspring from only one parent