PART A: Two T Dimples (D) are dominant to no dimples (d) Free Ear Lobes (E) is dominant to Attached Ear 1. Cross Ddee x DDEe Symbols D = Dimples; d = no dimples E = Free ear lobes; e = attached ear lobes Daee Parental Cross Genotypic Ratios DD Dd: DE Ed: Ee: De.de..e 2 1 1: 2: 5:1: 2: 2: x_DDE e Phenotypic Ratios
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- Using the data on the segregation of eye-color from Dosophila culture (see table 1). Tabulate your F1 and F2 data on eye-color as associated with sex by making a table. Based on your observations, frame your hypothesis as to the expected segregation of eye-color associated with sex. Apply the Chi-squared test to determine the goodness of fit of your data per generation. Ho: Ha: Decision Criteria: If X2c < X2tab, accept Ho. Otherwise, fail to accept Ho and accept Ha. Fill-up the next table. Conclusion: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).Define all the following using shape of human ear. Elongated (E) is dominant and round(e) is recessive. This gene occur in pairs 05 i) Genotypeii) Phenotypeiii) Homozygous traitiv) Heterozygous trait
- please 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 aboveClick on the link: https://www.dailymail.co.uk/news/article-4168946/Mum-world-s-black-woman-two-white-babies.html#ixzz4hvs1FUeM.Links to an external site. This case explores how skin color is inherited in humans, presented in the story of Catherine and Richard Howarth whose children are surprisingly light skinned compared to their Nigerian mother. Based on what you have learned about polygenic inheritance, explain how Richard and Catherine Howarth were able to produce light-skinned babies. Are the odds indeed 1 in a million? Include possible genotypes of the couple and their children to support your argument.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 does have the trait. A. What mode of inheritance is the most likely for this trait, autosomal recessive or autosomal dominant? State your rationale for full credit. B. What is the genotype of the individual marked with the question mark? (Heterozygous, homozygous, or unknown)
- Give correct typing answer with explanation and conclusion 1. which of the following is correct about dominant genes? Dominant genes are the weakest but take charge of physical appearance Dominant genes are the strongest but take no charge of physical appearance. Dominant genes are the strongest and take charge of physical appearance. Dominant genes have no effect on physical appearance.A person is heterozygous for ear shape. Ear lobes are dominant to no ear lobes. Which would be a correct way to write their genotype? Group of answer choices A. ee B. ear lobes C. no ear lobes D. Tt E. EEAnalysis of Autosomal Recessive and Dominant Traits Huntington disease is a rare, fatal disease that usually develops in the fourth or fifth decade of life. It is caused by a single autosomal dominant allele. A phenotypically normal man in his twenties who has a 2-year-old son of his own learns that his father has developed Huntington disease. What is the probability that he himself will develop the disease? What is the chance that his young son will eventually develop the disease?
- Use the following information to respond to the three questions posed below: (1) The proband (affected individual who led to the construction of the pedigree) exhibits the trait. (2) Neither her husband nor her only sibling, an older brother, exhibits the trait. (3) The proband has five children by her current husband. The oldest is a boy, followed by a girl, then another boy, and then identical twin girls. Only the second oldest fails to exhibit the trait. (4) Both parents of the proband show the trait. a. Construct a pedigree of the trait in this family. b. Determine how the trait is inherited (go step by step to examine each possible pattern of inheritance). c. Can you deduce the genotype of the probands husband for this trait?Consider the following scenario: A man without freckles (freckles are a dominant trait, determined by the dominant allele “F”) is a carrier of cystic fibrosis (recall that CF is a recessive trait, determined by the recessive allele "a"), mates with a woman whose genotype is heterozygous for freckles and is also a carrier of CF. Assume the two genes in question are in different chromosomes and, therefore, assort independently. Complete the following Punnett square to generate the offspring probabilities from this couple, by entering the genotypes of the parents, the gametes, and the offspring for the two traits described above. (4) Father’s genotype ffAa Mother’s genotypeFfAa ● Sperm: fA ● Sperm: fa ● Sperm: fA ● Sperm: fa ● Egg: FA ● Egg: fA ● Egg: Fa ● Egg: fa What is the probability for this couple to have a child with freckles? What is the…Genotype refers to the letters used as symbols for the genes. Phenotype refers to the appearance.Let’s practice assigning letters for the tall and short phenotype. Remember, we usually use the letter of the dominant (trait).