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- Draw a punnett square for each problem. Please be careful to notice whether a trait is homozygous or heterozygous. One parent has O type blood. The other parent has heterozygous B type blood. What are all the possible blood types the children may have? Answer:____________O ____________A _____________B _____________AB In a paternity case a man is accused of having fathered a child. He denies the accusation and presents the following evidence. His blood is O. The mother’s type is AB. The child has AB blood. Could he be the father? _______yes ________noPredict the outcomes of the following situations. genotype of the parents Punnett square genotypic ratio phenotypic ratio conclusion/answer to the question(s) Mr. Dalisay comes from an elite family in the province who desperately wanted to have a boy as his first born child so that his father, Mr. Flavio Dalisay III, would hand over the family sacred relic, the Balaraw of Panday, to him instead of his other brother. There were rumors that Mr. Dalisay arranged for the exchange of the babies in the hospital to secure his heir. Mr. and Mrs. Lizardo received baby #1 and Mr. and Mrs. Dalisay received baby #2. Is this rumor true? Blood typing tests on the parents and the babies showed the following results: Mr. Lizardo: Type A Mr. Dalisay: Type AB Mrs. Lizardo: Type O Mr. Dalisay: Type O Baby #1 (Girl): Type A Baby #2 (Boy): Type O Were the babies switched? How do you know whether they were, or they weren’t?Homozygous dominant parent (PP), and a Homozygous recessive or just simply say recessive parent (pp): a. Fill in the Punnett square. Each box represents a genotype possibility for an offspring. b. Place the allele donated by each parent in the corresponding box. Now list the possible genotypes and their corresponding phenotype. c. If an individual's genotype is heterozygous, the dominant trait will be expressed in the phenotype. Give the percent possible for the phenotypes. P P p p Genotype: ______________ Phenotype: ______________ Phenotype % probable: __________ 2. Cross between a Homozygous dominant parent (PP) and a Heterozygous parent (Pp). Fill in as in step one. 3. Cross between a Heterozygous parent (Pp), and another Heterozygous parent (Pp). Fill-in as before. 4. Test cross: A test cross is between a recessive parent (pp), and a Heterozygous parent…
- Mrs. Xexy Lucero, GO, 25 years old has no affected genes. However, his partner Mr. Lucas Narciso, 30 years old has green color blindness, an X-linked recessive genetic disorder. Which of the following statements by Nurse Zasha is false regarding the couple's potential for having a child who is color blind? (Select all that apply). a. All male children will be carriers for color blindness. b. All male children' will be color blind c. All female children will be color blind. d. All female children will be carriers for color blindnessShow a completed punnett square for the following Dihybrid Cross: AaBb x AAbb. A=normal; a= short; B=bright; b=dull. Show your work for full credit. Give the expected genotypic and phenotypic ratios.Cross a homozygous tall female carrier for hemophilia with a short normal male. Give genotypic and phenotypic ratios of the offspring. Use T = Tall, and t = short for one trait, and H =normal, and h = hemophilia for the second sex-linked trait. The Cross is: XHXhTT X XYtt Question: What is the Ggenotypic ratio? a.) None is correct b.) 3:2:1:4 c.) 4:4:4:4 d.) 1:2:4:4
- . Assuming no involvement of the Bombay phenotype(in case you’ve already read ahead to Section 3.2):a. If a girl has blood type O, what could be the genotypes and corresponding phenotypes of her parents?b. If a girl has blood type B and her mother has bloodtype A, what genotype(s) and correspondingphenotype(s) could the other parent have?c. If a girl has blood type AB and her mother is alsoAB, what are the genotype(s) and correspondingphenotype(s) of any male who could not be thegirl’s father?Cross a homozygous tall female carrier for hemophilia with a short normal male. Give genotypic and phenotypic ratios of the offspring. Use T = Tall, and t = short for one trait, and H =normal, and h = hemophilia for the second sex-linked trait. The Cross is: XHXhTT X XYtt . Question: What is the phenotypic ratio? a. 1:2:4:4 b. 4:4:4:4 c. 3:2:1:4 d. None is correctConsider the following human traits: Eye color: brown (B) is dominant over blue (b)Fingers: polydactylous (P) or extra fingers is dominant over normal (p) fingersHairline: widows peak (W) is dominant of normal (w) hairline a. What is the phenotype of a man heterozygous for eye color?b. What is the genotype of a man with blue eyes?c. What is the phenotype of a woman heterozygous for finger trait?d. What is the genotype of a woman with normal hairline?e. What is the COMPLETE genotype of a man with blue eyes, heterozygous for polydactyly, and has a normal hairline?f. What is the COMPLETE genotype of a woman heterozygous for brown eyes, has normal fingers, and homozygous for widow’s peak?
- Examine the pedigree and answer the following questions; shaded individuals show the trait; genotypes are all unknown. The individual marked with the question mark is of an unknown genotype but lacks the trait. A. What mode of inheritance is the most likely, autosomal recessive or autosomal dominant? State your rationale for full credit. B. What is the genotype of the individual designated with the question mark? (Heterozygous, homozygous, or unknown). C. What are the genotypes of the parents in generation I? (Heterozygous, homozygous, or unknown). D. What are the genotypes of the three children of generation IV? (Heterozygous, homozygous, or unknown).If two parents with short fingers (dominant) have a child with longfingers, what is the chance their next child will have long fingers?a. There is no chance.b. 1/16c. 1/2d. 3/16e. 1/4please choose correct letter and discuss why you choose it.thanks 1. which among the traits is easier to control genetically? a. number of eggs per clutch b. egg weight 2. which among the statements about genetic correlation is true? a. always b. closely linked genes tend to stay together over several generations c. shown when genes have high penetrance d. none of the above 3. The part of the genotypic value that can be directly transmitted from parents to offspring? a. breeding value b. gene combination value c.environmental value d. none of the above