Biology, 12.11.2020 07:20 reyesmtz5414
John and Sarah had a child born with cystic fibrosis, a genetic disease. Both John and Sarah were normal, showing no signs of this disorder. How is it possible for them to have a child with this disease?
a. Cystic fibrosis must be a dominant trait disorder hidden in both parents' genotype, but not showing in the phenotype, that could be passed on to offspring.
b. Cystic fibrosis must be a recessive trait disorder hidden in both parentsā genotype, but not showing in the phenotype, that could be passed on to offspring.
c. Cystic fibrosis must be a dominant trait disorder hidden in one parentsā genotype, but not showing in the phenotype, that could be passed on to offspring.
d. Cystic fibrosis must be a recessive trait disorder hidden in one parentsā genotype, but not showing in the phenotype, that could be passed on to offspring
Answers: 2
Biology, 22.06.2019 06:00
Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time
Answers: 1
Biology, 22.06.2019 07:00
Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome
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Biology, 22.06.2019 10:00
The image shows the evolution of a species of fish. a few fish from a population developed different social behaviors and evolved into different species. two fish according to the image, the fish underwent . the new species of fish had mating seasons that were different from that of the original fish. because of the differences in mating seasons, the fish underwent reproductive isolation. this mode of isolation would be .
Answers: 1
John and Sarah had a child born with cystic fibrosis, a genetic disease. Both John and Sarah were no...
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