7th Grade Science Guide

7.4: Reproduction & Inheritance 3 Dimensions & Progressions

Unit 5

STANDARD ●​ 7.4.1 Develop and use a model to explain the effects that different types of reproduction have on genetic variation, including asexual and sexual reproduction. (MS-LS3-2)

CONCEPTS

SKILLS

●​ Asexual and sexual reproduction ●​ Genetic variation

●​ Develop a model ●​ Explain

LEARNING PROGRESSIONS

●​ Organisms reproduce. ●​ Some organisms reproduce sexually and some reproduce asexually. ●​ Genes are located in the chromosomes of cells. ●​ Genes control the production of proteins that affect traits of individuals.

●​ Sexual reproduction provides 1 set of genes from each parent which leads to genetic diversity ●​ Asexual reproduction is where a parent makes a duplicate of itself - no genetic diversity, as the offspring is identical to the parent. ●​ Animals engage in behaviors that increase the odds of reproduction. ●​ Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features of reproduction.

VOCABULARY

●​ Reproduction ●​ Genetic variation ●​ Asexual reproduction ●​ Sexual reproduction ●​ Parent ●​ Offspring

●​ Breed ●​ Fertilize ●​ Probability ●​ Recessive ●​ Dominant

●​ Gene ●​ Chromosomes

●​ Genotype ●​ Phenotype

POSSIBLE PHENOMENA ●​ All members of the desert grassland whiptail species are female. ●​ In a family with four children, two of the children have blonde hair and two of the children have red hair while both parents have red hair. ●​ A coral colony is made up of genetically identical individuals. END OF UNIT COMPETENCY WITH LANGUAGE SUPPORTS ●​ I can develop a model to show the differences in sexual and asexual reproduction. ○​ Language supports: ■​ Nouns to introduce concepts (variation, duplicate, copy, individual, parent, offspring)