Learning from the Fossil Record Grade 8 Science Name: Katherine Burns Date: 1/3/11 Genes and Chromosomes Justified True or False Worksheet Statement The instructions that determine an organism’s traits are found in an organism’s DNA. PRE True or False TRUE PRE JustificationWhy did you choose T or F? Because in our last unit we learned about DNA and I know that it’s like an encyclopedia. All information is in it. I Guessed POST True or False TRUE POST JustificationWhy did you choose T or F? They are found in the genes, which are pieces of DNA. TRUE We learned this in class and on the website activity. We learned from the video on our homework that genes are in DNA which are found in chromosomes which are found in a nucleus of a cell. The traits are found in a gene, which are determined from the parents. So technically yes. Genes are found in DNA, which are found in chromosomes, which are found in a cell’s nucleus. TRUE Each trait of an organism is determined by a gene. TRUE The DNA is the instructions for an organism are found in a gene. The gene is the cell for the DNA like the epithelial cells for skin. TRUE Humans have 46 chromosomes, half come from each parent. FALSE I guessed TRUE We learned it in class. Plus I thought it meant in the entire body not each cell. The cells in a person’s eyes only have the eye color gene, all other cells do not have that gene. FALSE I guessed FALSE Each cell has every gene but the cell only uses the traits that are relevant to that particular cell. Learning from the Fossil Record Grade 8 Science Name: Katherine Burns Date: 1/3/11 Only some organism’s cells contain chromosomes, genes, and DNA. FALSE Didn’t sound right. Every single cell has genes, chromosomes, and DNA. How would it now what to be? (what type of cell) I guessed. PLUS I think you get a gene from both parents for everything but the body only reads one of them. FALSE All organisms cells contain chromosomes, genes, and DNA. It just depends on how many the organisms have. We have two genes for each trait in our cells but each gene might have different instructions for the same trait. TRUE TRUE The mother might have green eyes and the father might have brown. So both traits are given to the child so that’s why there’s 2 and they might be different. They get passed from the process of heredity and genes contain the traits that are passed to you that tell whether you get your dad or mom’s eyes. They are found in genes. Genes contain information that can be passed from parent to offspring. TRUE That’s how you become who you TRUE are. Inherited characteristics are called traits and are passed from parent to offspring. FALSE I guessed TRUE Reproduction does not play a role in inheriting traits. FALSE I can’t put it into words. FALSE That is the 1st step in the whole process. Without that their would be nothing. Reproduction helps to inherit the traits because reproduction passes genes to the offspring. And inside genes there are traits. Learning from the Fossil Record Grade 8 Science Name: Katherine Burns Date: 1/3/11