heightened responses to ethanol, and ken&barbie (kb) lack external genitalia. [These are real genes and phenotypes; see links. Only the nomenclature and mapping are fictional for the purpose of this activity.] In the first parental or P₁ generation, homozygous F KB I/F KB / females expressing the lush phenotype (I) and f kb L/Y males expressing fruitless (f) and ken&barbie (kb) were crossed together (artificially, given their reproductively challenged status). The first filial or F₂ female progeny were then bred (with males) resulting in the second filial or F2 generation male progeny (right). 1. F₁ females have phenotypes. & & & Phenotype KB kb 2. Parental, non-cross over genotypes are 3. Single cross-over genotypes are 4. Double cross-over genotypes are 5. The gene in the middle is 6. Recombination frequencies & map distances (% or centiMorgans, cM) are: A. f→ kb B. kb/________ & 7. The most accurate map distance between the outside genes is 8. Illustrate your answers to questions 5-7 on the final map, below: & F F F F f f kb KB L I L I kb L kb I f KB L f KB I C. If & # Flies 27 213 348 912 948 33 177 354 3012
heightened responses to ethanol, and ken&barbie (kb) lack external genitalia. [These are real genes and phenotypes; see links. Only the nomenclature and mapping are fictional for the purpose of this activity.] In the first parental or P₁ generation, homozygous F KB I/F KB / females expressing the lush phenotype (I) and f kb L/Y males expressing fruitless (f) and ken&barbie (kb) were crossed together (artificially, given their reproductively challenged status). The first filial or F₂ female progeny were then bred (with males) resulting in the second filial or F2 generation male progeny (right). 1. F₁ females have phenotypes. & & & Phenotype KB kb 2. Parental, non-cross over genotypes are 3. Single cross-over genotypes are 4. Double cross-over genotypes are 5. The gene in the middle is 6. Recombination frequencies & map distances (% or centiMorgans, cM) are: A. f→ kb B. kb/________ & 7. The most accurate map distance between the outside genes is 8. Illustrate your answers to questions 5-7 on the final map, below: & F F F F f f kb KB L I L I kb L kb I f KB L f KB I C. If & # Flies 27 213 348 912 948 33 177 354 3012
Chapter14: Human Inheritance
Section: Chapter Questions
Problem 2GP: Human females have two X chromosomes XX; males have one X and one Y chromosome XY. a. With respect...
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