Question

LAB SECTION NAME (First & Last) brain damage PKU is an autosomal recessive genetically tra Persons who are heterozygous are healthy even though they carry the PKU allere ve genetically transmitted condition that can ultimately lead to brain dan homozygous recessive have the disease. Crossa heterozygous carrier with a person letter "D" for the dominant allele and the letter for the recessive allele. Show your res the PKU allele. Persons who are carrier with a person who has PKU. Use the cessive allele. Show your results below 12. What percentage of the offspring will be heterozygous? 13. What percentage of the offspring will be homozygous recessive? 14. What percentage of the offspring will be considered carriers of the disease? 15. What percentage of the offspring will be healthy? 16. What percentage of the offspring will be diseased? Complete the following dihybrid cross and answer the questions that follow In peas, the allele for round seeds (R) is dominant to that for wrinkled seeds (r): the allele for yellow seeds (Y) is dominant to that for green seeds (y). Cross a plant that has yellow round seeds (YyRr) with one that has green wrinkled seeds[yyrr) 17. What percentage of the offspring will have a green phenotype? 18. What percentage of the offspring will have wrinkled seeds? 19. What percentage of the offspring will have the genotype RrYy?

Answer 1

Answer to first question and its subparts

Let 's' be dominant allele and d' its recessive. x person with Ku phenotype heterozygous carrier ح Genotype od dd Gametes Punnet square Dd व Tod I dd od is heterozygous reronygous domon dominant and is healthy nomozygous recessive and have Proa

individuals have individuals have Heterozygous lous a one dominant and one 12) recessive allele. Here we have two od offspring in F). is 50 that is heterozygous Percentage of offspring (4x100) two recessire individual carries 13) Homozygous recessive have two ad alleles. Here in F, we offspring. is so, are homozygous reces recessive that odfspring Percentage od c x100) ie. od 14) Carriers are beterozygous individuals percentage of offspring considered as carrier is 50 % c *100) 15) Both homozygous dominant and heterozygous dominant individuals are healthy. offspring is 50 % (two od in Fi) percentage of healthy C*100) Poiseased individuals are homozygous recessive cad ) bercentage of diseased offspring is 50 y CX X100)