TWO-GENE CROSSES Info for Problems # 9-11. Dimples and freckles are autosomal dominant traits, encoded by genes on separate chromosomes. Jessica has no dimples and no freckles. Jessica's mother has dimples and freckles, and Jessica's father has no dimples and no freckles. D= d- F= X O
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must fill up the punnet square and the pedigree
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- 2/7 - <. Hair texture is an incompletely dominant trait in humans. The three phenotypes are curly, wavy and straight. Straight only occurs when both parents have straight hair. Curly hair also tends to follow this pattern. Only two wavy haired parents produce all three phenotypes. Please explain this observation using punnett squares. Curly x Curly straight x straight Wavy x wavyTrivla Game Show _Make Your Own Tri ngston.schoology.com/common-assessment-delivery/start/4789189591?action=onresume&submissionld=463322566 Dillon WF g Aa v Done In guinea pigs, black hair (B) is dominant to white hair (b) and rough hair (R) is dominant to smooth hair (r). What are all the possible genotypes of a guinea pig that has black, rough hair? (Select all that apply.) O BBRR BBRr BBrr BBRR BbRr O bbRR O bbRr O bbrr O Black O White O Rough OSmooth O Rough O SmoothPEDIGREES: Problem 7 This pedigree shows the inheritance of atype of X-linked color blindness. It is a recessive trait. Carriers have NOT been half-shaded in this pedigree. • QUESTIONS • • • I ODO0 I. Work out who is definitely a carrier & drag the correct shape onto them. 1 2 3 4 II 1 3 2. Is it possible to work out the geno- type of individual II-I? Explain III your reasoning. 1 2 3 IV 1
- Drosohpila Punnet Square of Crosses. I need results of F1 & F2 generation using Punnett Squares for: Make Punnet Squares of the following crosses •Drosophila Female wildtype cross Male White-eye •Drosophila Male wildtype cross Female White-eye •Drosophila Female Wild Type cross Male Scarlet Eye •Drosophila Male Wild Type cross Female Scarlet Eye Also, Which allele is heterozygous and which is homozygous, & which is dominant and which is recessive?ng -Courses iblic/activ 003004/a s sment al V T-Rex Game. un in to your acc. L 1.3.4 Quiz: Predicting Genetic Outcomes Question 1 of 10 Mendel used over 28,000 pea plants in his experiment. How does this large sample size make his results more reliable? O A. He was not sure which of the plants were female and which were male. B. Most of the plants were unable to reproduce, so he needed many of them. C. He used more plants so the experiment wouldn't take as long. D. It made his actual results approach the results predicted by probability. SUBMIT E PREVIOUS100% - Normal teRI 52 Search the menus (Alt+/) 4 2. that a parent The pattern of on to their Heredity (to Inherit) Аny that can be passed or Trait from parent to offspring. the of a trait Allele This allele will be or shown, no Dominant Trait matter what if it is given to the offspring, This allele will be ONLY if there are given to the offspring; both parents Recessive Trait must have and give a copy of the recessive trait for the offspring.to have the trait. Word Bank Illustration Bank characteristic • passes different versions • shown • expressed • traits inherited two copies
- A. HUMAN PEDIGREE CASE ANALYSIS1. One couple has three children with the following sexes and ages: one son (40 y.o.) and two daughters (35 y.o. and 33 y.o.), all of them have normal pigmentation. Another couple has a son (35 y.o) and a daughter (20 y.o.) and all of them also have normal pigmentation. Both couples have normal pigmentation. The younger daughter from the first couple married the son of the second couple and they had three children. Their eldest daughter (5 y.o.) has normal pigmentation while their only son (3 y.o.) and one daughter (1 y.o.) have albinism. a. Draw the pedigree of this family. Follow protocols in making a pedigree. Provide the genotype of all individuals in the pedigree. Please provide also the gene notation. b. What is the mode of inheritance of this trait? c. Justify your answer in letter (b).d. For their normal daughter, what is the probability that she is a carrier? Show solution. e. If they will have a fourth child, what is the probability that the…ull T-Mobile LTE 10:32 PM © 73% Mendelian Genetics Lab LASC... MENDELIAN GENETICS Define the following terms: Gene: Homozygous: Allele: Heterozygous: Phenotype: Dominant: Genotype: Recessive: P, F1, F2 generations: Introduction to probability To understand genetics, it is essential to understand probability. The numerical value of the probability of an event can range from 0 (impossible) to 1 (certainty). For example, what is the probability of flipping a coin and getting tails? There are two possible outcomes (heads and tails) that are equally likely, but we are looking for the probability of just one of them (tails). Probability of tails = ½ = 0.5. What is the probability of tossing a six-sided die and getting a four? What is the probability of tossing a six-sided die and getting an even number? What is the probability of tossing a six-sided die and NOT getting a four? The first law of probability states that the results of one trial do NOT influence the results of later trials for…11 Normal No Spac. Styles Paragraph Inheritance APPLICATION Imagine that you are interested in developing a new tomato plant that will inchude the large size and sweetness from one parent and yellow color from another parent. The first parent plant has bland-tasting small yellow tomatoes and the other parent has sweet-tasting large red tomatoes. The chromosomes and alleles of the two plants are shown below. Plant #1: Bland (B), Small (1), Yellow (r) Plant #2: Sweet (b), Large (L), Red (R) R 1 r R Think about what you learned about inheriting traits from the lab to answer these questions. 1. Explain (in sentence form) why it is or is not possible for any of the offspring of these parents to have the sweet gene expressed in its phenotype. To illustrate your explanation, you may use a diagram or use the Punnett squares below to show the genotypes of the possible offspring. Include a percent chance in your answer. 2. Explain whether or not it is possible to create a tomato plant with…
- For numbers 34-50. Given the following pedigree, answer the following questions. 1st generation would be the grandparents, 2" generation would be the children of the grandparents and the 3" generation would be the children of the 2"generation. Trait that would be track is autosomal dominant and recessive. Cleft chin (CC or Ce) = Dominant No cleft chin (ce) = Recessive II 10 34-37. What is the expected Genotype of the grandfather? A. CC В. Се С. се D. Either A or B 38-41. What is the expected genotype of number 4 given the following genes in the 1st generation A. CC В. Се C. Either A or B D. Neither A nor 8 42-45. Who are the persons failed to inherit cleft chin from the grand mother? A. Number 5, 1, 8,9 and 7 B. Number 2, 9, 7, 10 and 3 C. Number 2, 5, 7, and 9 D. Number 1, 3 and 10 E. Nurmber 2 and 5 47-50. If number 10 married a person without a cleft chin and all the off-springs have cleft chin, what is the genotype of number 10? A C В. Сс С. сс D. Either A nor B1-Gigantism is being traced in a family through a pedigree. Its mode of inheritance is thought to be autosomal recessive. You examine the pedigree and decide that the mode of inheritance is not correct. What is the correct mode of inheritance? 2-Provide 2 pieces of evidence for the mode of inheritance selected for Gigantism. (i.e.- Individual 45 is afflicted and passed it on to all of her offspring, indicating that it is dominant. Or there is a gendered pattern of inheritance seen when Individual 99 passed it on to only his female offspring.)dd-ons Help в I U A Calibri 12 三 三1 |:三 6. Consider a guinea pig with a homozygous genotype and a white fur color phenotype. a. What is the probability this parent will produce a gamete with the dominant allele? b. What is the probability this parent will produce a gamete with the recessive allele? C. If 31 sperm cells are collected from this guinea pig, how many would you expect to have the recessive allele (as determined by sequencing the gene)? !!!