Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
GENETICS Practice Chapter 9 G g G GG Gg g Gg gg The parents in this cross are _____________ Homozygous Heterozygous Heterozygous If G is dominant for green pods and g is recessive for yellow pods, what percentage of the offspring will have green pods? _______% ¾ or 75% B b B b The genotype of the offspring in the blue box is _______ bb The offspring in the blue box is homozygous heterozygous homozygous In guinea pigs black fur (B) is dominant over white fur (b). The Punnett square for a cross between a HETEROZYGOUS black guinea pig and a PURE white guinea pig would look like B B B b B b B b B b b B b b b B This is the Correct setup Heterozygous = Bb Pure white = bb Another name for pure is _________________ homozygous A o A B AA Ao The alleles for blood type show 2 kinds of inheritance.. AB Bo The following statements are TRUE or FALSE? F F T T F T A is dominant over B. O is dominant over A. A is dominant over O. B and A are co-dominant A is incompletely dominant over O. O is recessive to A and to B An organism has the genotype Xy. What are the possible sperm it can produce? ______ ______ X y THINK ABOUT IT: If females have an XX genotype and can only give X genes, which parent is the one that determines whether the baby is a boy or girl? Father ; The mother always gives an X If the father gives a y, it’s a boy. If the father gives an X; it’s a girl. If you cross a homozygous RED flowered four o’clock plant with a homozygous WHITE flowered plant, ALL of the offspring produced have PINK flowers. This type of inheritance in which the heterozygote (Rr) shows a blending of traits is called __________. A. Dominant/recessive inheritance B. Co-dominance C. Incomplete dominance Incomplete dominance R r r Rr Rr r rr rr What are the phenotypes of their offspring? (% and color) Red throats (R) are dominant over white (r) throats in Goonie birds. Make a cross between a PURE RECESSIVE and a HETEROZYGOUS Goonie bird. 50% red throats 50% white throats B b B BB Bb b Bb bb What are the phenotypes of their offspring? (% and color) Black eyes (B) are dominant over red eyes (b) in rats. Make a cross between two HETEROZYGOUS rats. 75 % black eyes 25% red eyes What would a blood cell from a person with B type blood look like? A person with this phenotype could have 2 possible genotypes. Bo ______ BB _______ The parents in this cross are _____________ Homozygous Heterozygous Homozygous If W is dominant for long wings and w is recessive for short wings, what percentage of these offspring will have short wings? _______% 0% only ww has short Who is the “Father of Genetics”? Gregor Mendel Which of the following genotypes could be from a HETEROZYGOUS organism? TT Rr Ww Rr Ww bb XX Ss Ss What kind of cross is this? Pure dominant X pure recessive Heterozygous X heterozygous Heterozygous X homozygous Hybrid recessive X hybrid pure Heterozygous X Homozygous Another name for heterozygous is _______________ hybrid t t T T Tt Tt Tt Tt In Reebops curly tails (T) are dominant over straight tails (t). Make a cross between a HOMOZYGOUS DOMINANT and a HOMOZYGOUS RECESSIVE Reebop. What % of the offspring will 0% have straight tails? All will be Curly tailed (Tt) TtRr X TtRr TR Tr tR tr TTRR TTRr TtRR TtRr Tr TTRr TTrr TtRr Ttrr tR TtRR TtRr ttRR ttRr tr TtRr Ttrr ttRr ttrr TR Tall = T short = t R= round seeds r=wrinkled seeds This is an example of a DIHYBRID cross. Which pattern of phenotypes will be seen in the offspring? 9:3:3:1 How many offspring will be 3/16 Short AND Round? ______ Recessive and dominant 1/16 Short AND wrinkled? ______ Recessive and recessive HINT: 9- dominant for both 3- recessive and dominant 3- dominant and recessive 1- recessive and recessive What would a blood cell from a person with A type blood look like? A person with this phenotype could have 2 possible genotypes. Ao ______ AA _______ What do we call the offspring of the F1 generation? F2 Which of the following genotypes could be from a HOMOZYGOUS RECESSIVE organism? TT bb bb Rr Ww tt tt XX aa aa A a A a The genotype of the offspring in the blue box is _______ homozygous heterozygous heterozygous How many of the offspring from this cross will show the dominant characteristic? ¾ (75%) – AA and Aa G g G g G is dominant for green pods. g is recessive for yellow pods. GG Gg Gg gg What is the genotype of the offspring in the shaded box? What is the phenotype of the offspring in the shaded box? Gg Green pods Which of the following is NOT TRUE? T Genotype determines phenotype T Alleles are different forms of the same gene. Genotype is the way the genes F make you look. T Organisms with different genotypes can have the same phenotype. Tt and TT both look tall What would a blood cell from a person with AB type blood look like? A person with this phenotype would have this genotype. AB ______ What are the 3 different kinds of inheritance you learned about? Dominant/recessive Incomplete dominance Co-dominance Offspring of the P1 generation are called F1 ______ O O A B Ao Bo Ao Bo What will the % and blood type of the offspring be? What are the possible offspring of a cross between a blood type AB mom and a type O dad? 50% Type A 50% Type B Which of the following crosses would you expect to see a 9:3:3:1 ratio in the offspring? SSYY X ssyy SsYy X SsYy ssYY X SSyy SsYy X SsYy 9:3:3:1 ratio is seen in dihybrid crosses P p p P Pp Pp Pp Pp What will the offspring be like? (% and color) Purple (P)is the dominant color for monsters. Yellow is recessive (p). Make a cross between a HOMOZYGOUS purple and a yellow monster. 100% purple What would a blood cell from a person with O type blood look like? A person with this phenotype would have this genotype. oo ______ What genotype would a PURPLE dad have to be to make a yellow monster baby with a Purple (Pp) mom monster? P ? ? p pp Pp Dad needs to have: a little p to give one to the baby a big P to be purple himself O blood is called the Type ____ “Universal Donor” because in an emergency it can be given to people with ALL blood types. (A,B,O,AB) AB blood is called the Type _____ “Universal recipient” because it can receive blood from all of the different Blood types.