1. The document describes four genetics problems involving monohybrid crosses, dihybrid crosses, sex-linked traits, and blood types.
2. The monohybrid cross problem involves a cross between a solid colored female and spot colored male that results in either spot colored or solid colored offspring.
3. The dihybrid cross problem involves a cross between a tall, fat male and a short, thin female that would result in 100% of offspring being tall and fat.
1. Andrea Gonzalez<br />Tatiana Diazgranados 10CB<br />Genetics<br /> 1 Monohybrid cross<br />A=Solid color<br />a= Spot<br />A spot coulored female cross with a solid color male. The solid color is dominant<br />over spot coulored. His first puppy would be spot coulored or solid coulored.<br /> A A<br />a Aa Aa100% spot coulored a Aa Aa<br />2 Dihybrid cross<br />A couple is having her first baby . The male is short and thin , and his wife is tall and fat. Taking into account that tall and fat dominates the crossing. How would be her baby?<br />R= Fat <br />r=Thin <br />B=Tall<br />b=short <br />=bbrr<br />=BBRR<br />Bbrr* BBRR<br /> BR BR BR BR<br />BrBrBrBr BbRr BbRR BbRr BbRr BbRr BbRr BbRr BbRr BbRr BbRr BbRr BbRr BbRr BbRr BbRr BbRr<br /> <br />100% tall and fat<br />3 Sex linked <br />Osteoporosis is a disease that just women suffer, if a woman with this disease crosses with a healthy their children would be …<br />XtXt * XtY <br /> Xt Xt<br />XT XtXT XtXTY XtY XtY<br /> <br /> 100% Women unhealthy.<br />100% Men healthy<br />4 Blood Type<br />Which are the possible result of the cross between individuals with AB blood type and O of the other parent taking into account that O is the recessive allele?<br /> <br /> ǀᴼ ǀᴼ<br /> ǀᴬ ǀᴬ ǀᴼ ǀᴬ ǀᴼ ǀᴮ ǀᴼ ǀᴮ ǀᴼ<br />ǀᴮ<br />The child will be A or B because all of the possibilities include O but it is recessive so we could conclude that all will be carriers of O blood type.<br />4 Conclusion<br />In conclusion we can said that it is very important to follow some steps for solving the genetic problems , first of all we have to identify what traits are dominant and what traits are recessive ,we can try to determine the possible genotypes of the parents and with that information try to predict the possible gametes of each parent. With all this information we make a punnett square and finally we get which are the dominant and recessive characteristics and their respective percentages.<br />