Grade 10 Biology Inheritance, Variation, and Evolution PDF

**[Grade 10]** **[Biology units and objectives]** +-----------------------------------+-----------------------------------+ | **[Unit 1]** | **[Inheritance, variation, and | | | evolution]** | +-----------------------------------+-------------...

**[Grade 10]** **[Biology units and objectives]** +-----------------------------------+-----------------------------------+ | **[Unit 1]** | **[Inheritance, variation, and | | | evolution]** | +-----------------------------------+-----------------------------------+ | | **Key vocabularies:** | | | | | | Define the terms: inheritance, | | | heredity, DNA, gene, chromosome, | | | allele, genotype, phenotype, | | | homozygous, heterozygous, | | | dominant, recessive, codominant, | | | incomplete dominant, variation, | | | species, natural selection, | | | mutation. | +-----------------------------------+-----------------------------------+ | | **[Inheritance]** | | | | | | 1. Explain the relationship | | | between genes, chromosomes, | | | and DNA. | | | | | | 2. Describe how DNA structure | | | was discovered. | | | | | | 3. Explain Chargaff's rule and | | | how it was useful for | | | developing the DNA structure. | | | | | | 4. Understand the use of a test | | | cross to find the genotype of | | | an organism showing the | | | dominant characteristic in | | | its phenotype. | | | | | | 5. Predict and explain, using | | | Punnett squares & pedigree | | | charts, the results of | | | crosses involving: | | | | | | - dominant and recessive | | | alleles | | | | | | - codominance | | | | | | - incomplete dominance | | | | | | - multiple alleles (examples | | | blood groups inheritance) | | | | | | - sex-linked inheritance.  | | | | | | 6. Understand and analyse | | | dihybrid test cross | | | problems.   | | | | | | 7. Explain how gender is | | | inherited in humans. | | | | | | 8. Discuss and evaluate the | | | implications of using science | | | and its application to solve | | | a specific problem or issue. | | | (Crit D) | +-----------------------------------+-----------------------------------+ | | **[Variation and | | | evolution]** | | | | | | 1. Understand that there is | | | variation between species. | | | | | | 2. Understand that variation is | | | caused by genes and is also | | | affected by the environment. | | | | | | 3. Describe two types of | | | variation: Discontinuous and | | | Continuous Variation. Give | | | examples of both types of | | | variations | | | | | | 4. Identify the causes of | | | variation and analyse its | | | impact.  | | | | | | 5. Understand that variation | | | caused by genes can be | | | inherited but that variation | | | caused by the environment | | | cannot. | | | | | | 6. Describe some examples of | | | variation in the human | | | population and how it occurs. | | | | | | 7. Understand what evolution is. | | | | | | 8. Understand the process of | | | natural selection & mutation | | | and use these to explain the | | | evolution of named species. | | | | | | 9. Describe the factors that | | | allowed natural selection to | | | occur. | | | | | | 10. Evaluate the positive and | | | negative aspects of how we | | | use technology to resolve a | | | global issue related to | | | genetic engineering in any | | | organism. | +-----------------------------------+-----------------------------------+