Ch. 13-3 Refer to problem 2. Determine the predicted genotype frequencies among the offspring of the following crosses:a. AABB × aaBB b. AaBB × AABb c. AaBb × aabb d. AaBb × AaBb
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Ch. 13-3
Refer to problem 2. Determine the predicted genotype frequencies among the offspring of the following crosses:
a. AABB × aaBB b. AaBB × AABb c. AaBb × aabb d. AaBb × AaBb
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- 2. 235O 4) Q7. Haemophiliacs possess a non-functional form of the gene responsible for the production of blood clotting factors. Shown below is the occurrence of haemophilia in one family. = male = female = male haemophiliac 7. 8. 5. 9. 3. 11 12 Usingthe following symbols: H = dominant allele h = recessive allele 1) State the genotypes of the following individuals. Individual Genotype 1. 6. 2) On the basis of the information provided, is the inheritance of haemophilia: (i) autosomal or sex-linked? (ii) dominant or recessive? 3) State the probability of individual 8 being a carrier of haemophilia. 4) Explain why only females can be carriers of haemophilia.30*_SP23 - General Biology I (for maj s page A 1:1 phenotypic ratio will occur when which of the following crosses is done? Select one: O a. Tt x Tt b. TT x tt O c. TTx TT O d. TTx Tt O e. tt x tt O f. tt x Tt O g. GgTt x GgTt h. GGTT x ggtt GGtt x ggTT O i. MacBook Air1) What is the pure-breeding (or true-breeding) strain or organism?
- Ch. 14-9 Mutations in the genes for clotting factor VIII and IX cause hemophilia A and B, respectively. A woman may be heterozygous for mutations in both genes, with a mutated factor VIII allele on one X chromosome, and a mutated factor IX allele on the other. All of her sons should have either hemophilia A or B. However, on rare occasions, one of these women gives birth to a son who does not have hemophilia, and his one X chromosome does not have either mutated allele. Explain.. a. A mouse cross A/a ⋅ B/b × a/a ⋅ b/b is made, and inthe progeny there are25% A/a ⋅ B/b, 25% a/a ⋅ b/b,25% A/a ⋅ b/b, 25% a/a ⋅ B/bExplain these proportions with the aid of simplifiedmeiosis diagrams.b. A mouse cross C/c ⋅ D/d × c/c ⋅ d/d is made, and inthe progeny there are45% C/c ⋅ d/d, 45% c/c ⋅ D/d,5% c/c ⋅ d/d, 5% C/c ⋅ D/dExplain these proportions with the aid of simplifiedmeiosis diagrams.30*_SP23 - General Biology I (for majors page A 9:3:3:1 phenotypic ratio will occur when which of the following crosses is done? Select one: O a. Tt x Tt O b. TTx TT O c. TT x tt d. GGTT x ggtt O e. tt x Tt O f. GgTt x GgTt O g. GGtt x ggTT Oh. tt x tt Oi. TTx Tt 20 000 000 MacBook Air
- Ch. 13-4 For each genotype listed, what allele combinations will occur in gametes?a. AABBCC b. AaBBcc c. AaBBCc d. AaBbCcRefer to problem 2. Determine the predicted genotype frequencies among the offspring of the following crosses: a. AABB × aaBB c. AaBb × aabb b. AaBB × AABb d. AaBb × AaBb1 9 11 10 Study the pedigree diagram of a sex- linked trait above and answer the following questions: What is the genotype of individual #5? [ Select ] а. XRXR d. XRY b. XRX" c. X"X" What is the genotype of individual #9? [ Select ] а. XRY b. X"Y c. XRX" d. X"X"
- 4:12 5. Set up the punnett square for each of the crosses listed below. The characteristic being studied is seed texture round seeds (dominant) and wrinkled seeds (recessive). Rr x rr Rr x Rr RR x Rr Tall: % Complete the punnett squares below using the given information. 6. A TT (tall) plant is crossed with a tt (short plant). Which trait is dominant? Give the expected probabilities for each genotype and phenotype. TT: Tt: Short: Previous % % tt: What percentage of the offspring would you expect be round? Wrinkled? ZOOM + What percentage of the offspring would you expect be round?_____ Wrinkled? What percentage of the offspring would you expect be round? Wrinkled? % 7. A hybrid tall (Tt) plant is crossed with a hybrid (Tt) plant. Give the expected probabilities for each genotype. phenotype. wvm.instructure.com20-21. Genes A and B are linked, 20 map units apart. 20. In a mating between an Ab/aB and ab/ab, what is the likelihood of AB/ab progeny? а. О b. 0.10 С. 0.20 d. 0.40 е. 0.80Practice: 1.) Heterozygous A crosses with Heterozygous A. Calculate the probability of each phenotype being passed down to the offspring. TOTALS: (percent and ratio) A: B: AB: O: 2.) Type O breeds with Type AB TOTALS: (percent and ratio) A: B: AB: O: 3.) Woman has type B (exact genotype unknown). Man has type O. What are the possible blood types of their kids? Is this type possible: A: yes/ no? B: yes/ no? AB: yes/ no? O: yes/ no? 3B.) If the woman has a baby with type AB blood, could the man above be the father? Explain you answer.
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