Name____________________________________________________________ Number________________ Study Guide 7th Grade Standard 4 objective 1 GENETIC INFORMATION IS PASSED FROM PARENT TO OFFSPRING: Students will be able to compare sexual and asexual reproduction. Students will be able to identify genetic information as an inherited trait. DNA: the material that makes up our genetic material Genetics: the study of inheritance Offspring: new organisms produced by one or more organisms Chromosomes: organized structures that contain DNA Inherited trait: Feature passed from one generation to the next. Acquired trait: Trait that organisms develops over a lifetime Traits: is a genetically determined characteristic Recessive: the trait that is masked Dominant: the expressed trait or the visible trait Homozygous: two of the same factors of a trait (BB) Heterozygous: two different factors of a trait (Bb) Sexual reproduction: Process of forming a new individual from two parents. Asexual reproduction: Process of forming a new individual from a single parent Reproduce: the ability to make the next generation List Acquired Traits Good at basketball Artistic Good at Math List Inherited Traits Eye Color Hair Color Height Who is Mendel and what did he study? Mendel was the Father of Genetics, He studies traits in Pea plants Using two examples of each, tell the difference between inherited and acquired traits. Inherited traits are those we get directly from our parents through DNA. An example of inherited traits would be out ability to roll our tongue or having a widows peak in our hair line. Acquired traits are those we learn from our parents or environment. An example of acquired traits would be giving the thumbs up as a supportive gesture, or twirling you hair when you are nervous. Fill in the Venn Diagram with similarities and differences between sexual and asexual reproduction. You should have at least two characteristics in each circle and in the space they overlap. Reproduction Organism Dog Strawberry Amoeba Humans Star Fish Sexual Sexual Reproduction x x x x Asexual Reproduction x x x Asexual List the three types of asexual reproduction. Budding: In this form of asexual reproduction, an offspring grows out of the body of the parent. (Yeast) Fragmentation: in this type of reproduction, the body of the parent breaks into distinct pieces, each of which can produce an offspring. (Star Fish) Binary Fission: In simple one celled organisms the cell will reproduce its DNA and then proceed to divide into two cells. Each cell would be called a sister cell having the same genetic information of the parent cell. Which type of reproduction results in offspring that are most different from the parent organisms? Sexual reproduction produces offspring that is different from its parent. In sexual reproduction offspring received genetic information from both parents that genetic information is also unique to each gamete or sex cell developed. This process give what could be considered endless possibilities for the genes of the future offspring. What is a structural trait of all living things? All living things are composed of cells A piece of a geranium plant is cut and placed it in a jar of water in the window. Several weeks later the piece has grown into a new plant. What is true about the genetic relationship between the first plant and the new one? The original geranium and the new plant are identical genetically. The original geranium is the parent plant to the new plant and has be reproduced asexually. Name____________________________________________________________________________ Number__________ GENETIC INFORMATION IS PASSED FROM PARENT TO OFFSPRING: Students will be able to compare sexual and asexual reproduction. Students will be able to identify genetic information as an inherited trait. DNA: Genetics: Offspring: Chromosomes: Inherited trait: Acquired trait: Traits: Recessive: Dominant: Homozygous: Heterozygous: Sexual reproduction: Asexual reproduction: Reproduce: List Acquired Traits List Inherited Traits Who is Mendel and what did he study? Using two examples of each, tell the difference between inherited and acquired traits. Fill in the Venn Diagram with similarities and differences between sexual and asexual reproduction. You should have at least two characteristics in each circle and in the space they overlap. Reproduction Organism Dog Strawberry Amoeba Humans Star Fish Sexual Sexual Reproduction Asexual Reproduction Asexual List the three types of Asexual reproduction. Which type of reproduction results in offspring that are most different from the parent organisms? What is a structural trait of all living things? A piece of a geranium plant is cut and placed it in a jar of water in the window. Several weeks later the piece has grown into a new plant. What is is true about the genetic relationship between the first plant and the new one?