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Petal coloration of pea plants has a complete dominance relationship where purple petals are dominant over white petals. There are 276 plants, 273 have purple petals. a. Find: the frequency of the dominant and recessive alleles and the frequency of individuals with the dominant, heterozygous, and recessive genotype.

Petal coloration of pea plants has a complete dominance relationship where purple petals are dominant over white petals. There are 276 plants, 273 have purple petals. a. Find: the frequency of the dominant and recessive alleles and the frequency of individuals with the dominant, heterozygous, and recessive genotype.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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I need help on # 13 please and thank you. Im stuck and have no idea
13. Petal coloration of pea plants has a complete dominance relationship where purple petals are dominant over white petals. There are 276 plants, 273 have purple petals. a. Find: the frequency of the dominant and recessive alleles and the frequency of individuals with the dominant, heterozygous, and recessive genotype. b. After 100 generations, the population of pea plants grows to 620. If the plant population is in hardy Weinberg equilibrium, how many pea plants would have white and purple flowers? 14. A student in a dorm discovers a room full of 666 cockroaches which included 24 albinos. These albinos were so scary looking that the student squashed them and let the remaining cockroaches breed. The next generation of cute little baby cockroaches totaled 13,485. Assuming that the allele for albinism is recessive how many of these youngsters were albino? Frequency of albino cockroaches = q^2= 24/666 = 0.036 Number of albino individuals in youngsters = 0.036 * 13, 485 = 486 15. A research lab used to have a colony of gerbils that were used for genetics research. The researcher was particularly interested in two coat color genes. One gene causes gerbils to be brown (B-) or black (bb). The other is called dilution and it causes colors to look lighter. For example, genetically black gerbils that are also dd look grey, genetically brown but dd gerbils are called "cinnamon". Initially, the lab had the following gerbils:
Transcribed Image Text:13. Petal coloration of pea plants has a complete dominance relationship where purple petals are dominant over white petals. There are 276 plants, 273 have purple petals. a. Find: the frequency of the dominant and recessive alleles and the frequency of individuals with the dominant, heterozygous, and recessive genotype. b. After 100 generations, the population of pea plants grows to 620. If the plant population is in hardy Weinberg equilibrium, how many pea plants would have white and purple flowers? 14. A student in a dorm discovers a room full of 666 cockroaches which included 24 albinos. These albinos were so scary looking that the student squashed them and let the remaining cockroaches breed. The next generation of cute little baby cockroaches totaled 13,485. Assuming that the allele for albinism is recessive how many of these youngsters were albino? Frequency of albino cockroaches = q^2= 24/666 = 0.036 Number of albino individuals in youngsters = 0.036 * 13, 485 = 486 15. A research lab used to have a colony of gerbils that were used for genetics research. The researcher was particularly interested in two coat color genes. One gene causes gerbils to be brown (B-) or black (bb). The other is called dilution and it causes colors to look lighter. For example, genetically black gerbils that are also dd look grey, genetically brown but dd gerbils are called "cinnamon". Initially, the lab had the following gerbils:
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