Kami Export - Talia Martianou - AP+Bio-029+Mendelian+Genetics+Worksheet-WL.pdf

Unformatted text preview: AP Biology 029 – Mendelian Genetics Video Review Sheet A. Introduction 1. What did Mendel work with? 2. What is the P Cross? 3. What is the F1 cross? pea plants first cross aka parental cross filial cross aka offspring 4. Describe the incorrect idea of “Blending”? the offspring were a blend of their parents 5. The F1 was a “hybrid” – what does that mean? heterozygous for the trait, Pp B. Diagram the first Punnett square that he created below and explain how white flower could come from two purple flowers: there is a one in four chance of the offspring being homozygous recessive, producing a white flower C. Mendel’s Laws: coin separation a. Law of Segregation: like a _______ flip. It is a ___________________ of those two chance alleles. Random _____________ affect b. Independent Assortment: Traits on different chromosomes don’t ___________each other. Sometimes things do travel together, but that is because those two genes are found on the same: chromosome D. Pause the video at the Sample Problems and try and work them out. 1/2 1. Coin flip: 2. Heterozygous means: hybrid for a trait Homozygous means: 2 same alleles 3. What is an organism’s genotype? What is an organism’s phenotype? genotype is the genetic makeup, phenotype is the resulting physical characteristic 4. What is the probability of homozygous recessive (rr)? 1/4 5. Why is there a greater chance of green seeds in problem 5 than wrinkled seeds (rr) in problem 4 above? yes, 1/2 likelihoods of both traits 6. Two Punnett squares because you need to multiply the _____________________ together. E. Disease: Would you want to know? Review Sheet for AP Biology 029 – Mendelian Genetics Contributed by Winnie Litten — YouTube -­‐ /mslittenbiology Twitter-­‐@mslittenbiology ...
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