Binomial expansion problem: The disease cystic fibrosis is a recessive disease governed by a single gene. Only individual's homozygous recessive is affected, whereas heterozygous individuals are unaffected carriers. The disease causes difficulty breathing due to the buildup of mucous in the lungs. Suppose two heterozygous parents have five offspring. What is the probability that two of the five offspring will be affected with the disease? To solve this problem if will be helpful to first create a Punnett Square depicting the possible genotypes of the offspring. Remember Mendel's Law of Segregation when constructing the Square and that both parents are heterozygous carriers of the cystic fibrosis allele. For Educational Purposes Oniy SLSU-TO/NCMatondo PUNNETT SQUARE What would be the probability that the couple's first child is affected and the next four children are unaffected? Would you use the product rule or the binomial expansion formula to determine this?

Autosomal Recessive Problem: What is probability of individual 2 III in pedigree 1 and individual 1 III in pedigree 2 to have an affect child?

Problem) A university student is studying the inheritance of 2 genes of pea plants. Color of plant:  Blue is dominant (B), and yellow is recessive (b) Spikes or no spikes:  Having spikes is dominant (G), and having no spikes is recessive (g). Which of the following findings would indicate to the student that these two traits are located close together on the same chromosome? a) The traits show independent assortment b) All gametes of a double heterozygous individual (BbGg) are either BG or bg c) A double heterozygous individual has four types of gametes in approximately equal proportions: BG, Bg, bG, and bg d) Student finds that there is frequent crossing over between the 2loci

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Mendelian Genetics The presence of a dimple on the cheek is governed by a dominant gene. A couple had already 4 children with dimpled cheeks. What would be the probability of having the next child as another dimpled if both parents are heterozygous for this character? Show your solution using Punnett Square

Pedigree analysis

Please answer fast

Brown eyes are dominant over blue eyes. This is NOT a sex linked trait. Cross a brown eyed Color blind male (whose mother had blue eyes) with a normal blue eyed female (whose father was colorblind)

NAME: Patterns of Inheritance Worksheet 1. True Breeding Parental Cross A homozygous dominant purple flowered plant is crossed with a homozygous recessive white flowered plant. a. What are the genotypes of the parent plants? (Use the Punnett square to determine the outcomes of this cross. Remember to place the gametes along the left side and top of the square. (P=Purple, p=white) b. What is the genotype of all F₁ plants? 1 b. c. What is the phenotype of all F₁ plants? C. d. How many plants out of 4 will produce white flowers? d. a. 2. Monohybrid Cross: The F₁ offspring from the above problem are allowed to self fertilize. a. What are the genotypes of the F₁ parents? a. (Use the Punnett square to determine the outcomes of this cross. Remember to place the gametes along the left side and top of the square.) b. What is the genotype ratio for this cross? c. What is the phenotype ratio for this cross? d. How many plants out of 4 will produces white flowers? d. b. C.