Probability in Genetics

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Questions

• What is an example probability in genetics practice problem?
• What information does a punett square provide?
• When 2 heterozygotes were crossed with each other i.e. #AaBb# x #AaBb#, the progeny showed: (i) A_B_ = 400 (ii) A_bb = 310 (iii) aaB_ = 290 (iv) aabb = 200 Does this prove Mendelian ratio? Find with a chi square test. (A and B- dominant)
• Given the following information, what is the probability that they will have a daughter with hemophilia?
• What is the probability that the son will be a carrier of the recessive allele?
• How do you do probabilities with punnett squares?
• What is the probability of having two autistic kids?
• What is the probability that all four are normal? That three will be normal and one albino? Two normal and two albino? One normal and three albino? All four albino?
• What is the probability that the first son of a woman whose brother is affected will be affected? What is the probability that the second son of a woman whose brother is affected will be affected if her first son was affected?
• What phenotypes would this cross produce and in what ratios?
• What can the principles of probability can be used for?
• What is the probability that their first son will have hemophilia?
• A woman whose brother had cystic fibrosis marries a man who had a child with cystic fibrosis from a previous marriage. They plan to have 3 children. What is the that only one of the 3 will have cystic fibrosis?
• If a person with type O blood has a baby with a person who has type AB blood, then what blood type will the baby have?
• The allele for curly hair is incompletely dominant. If a mother is homozygous for curly hair and the father is homozygous for straight hair, what percentage of the offspring will exhibit characteristics of both parents?
• An #F_1# plant that is homozygous for shortness is crossed with a heterozygous # F_1# plant. What is the probability that a seed from the cross will produce a tall plant?
• What is represented by a pair of lowercase letters, such as tt, in a Punnett square?
• Question #ba220
• Question #61451
• If the frequency of the #p# allele is .63 in the population then what is the frequency of the #q# allele?
• Why is crossing over so important to a species?
• Why are small populations more prone to genetic disease?
• Are calculated genotypic frequencies necessarily the same as observed genotypic frequencies?
• Question #741a4
• Question #16990
• Question #c4c81
• A woman who is a carrier of hemophilia is married with colour blind man. Than what will be the probability of sons to be colorblind..? A) 25% B) 50% C) 75% D) 100% E) None