DNA & Heredity: Intro to Genetics

Learn about genetics and heredity! Understand DNA, genes, traits, and Gregor Mendel.

Amoeba Sisters Explore Heredity Watch the Amoeba Sisters Video and complete the matching below. DNA, Chromosomes, Genes, and Traits Amoeba Sisters Heredity What is genetics and heredity? Heredity Match the term to the correct definition Draw a line to connect the correct definition to the term. heredity the passing on of traits to the next generation traits physical characteristics genes segments of DNA that carry traits from one generation to the next asexual reproduction traits are carried down from only one parent sexual reproduction traits are carried down from two parents Gregor Mendel and Heredity Watch the video and answer the questions below What happened to the green trait in Mendel's pea plants? it disappeared, further proving Darwin's theory of evolution the pea plants produced 50% less green seeds it was hidden by the dominant yellow gene nothing happened to the green gene What did Mendel call the two kinds of traits exhibited by the pea plants (one coming from the father, one from the mother)? genesis elective traits alleles neither a, b or c Use the word bank to complete the statements below. 1. Each organism has two genes for each trait. The different forms of a gene are called alleles.2. If both alleles are identical, the organism is said to be homozygous for that trait.3. If the two alleles are different, the plant is said to be heterozygous for that trait.4. The stronger allele is said to dominant, and the weaker allele that is masked is said to be recessive.5. When expressing dominant and recessive alleles, the dominant allele is always written as a capitalized letter, and the recessive allele as the same letter, but lower case.6. The physical traits that we observe are called the the plant's phenotype.7. The two genes that determine an organism's traits are called the genotype. A dominant tall allele would be expressed by? T t neither How would you express a recessive short allele? T s t When Mendel looked at the color of the pea pods they could be green or yellow, green being the dominant allele. Which are the possible genotypes for green pods? GG Gg gg IMPORTANT TURN-IN INSTRUCTIONS: To turn in this assignment, click the blue button in the bottom right corner that says "Hand in Work".You will be asked if you are sure you want to turn it in. If you want to make any changes, now is the time.If you are happy with your work, click the blue button that says "Confirm Hand in Work".This will turn in your assignment and a green bar will appear across the top of the page that says "Assignment Completed".If you don't see the green bar your assignment has NOT been turned in. You must get all the way to the green bar to get credit for this assignment.