)consider a pea plant- it has a gene controlling seed color- yellow vs green; another gene controlling seed texture-smooth vs wrinkled. a true breeding smooth green plant is crossed to a true breeding wrinkled yellow. all the f1 progeny were smooth yellow. the f1 generations were self-fertilized. assume the two genes (seed color and seed texture) are very tightly linked. in the f2 what is the expected ratio of the phenotypes- smooth & yellow: smooth & green: wrinkled & yellow: wrinkled & green 9: 3: 3: 1 1: 0: 1: 0 b
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Biology, 22.06.2019 01:30
What are the doorways into and out of cells, attached to the membrane, and built in the rough er.
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Biology, 22.06.2019 07:30
The hematodinium parasite becomes less of a problem for the blue crab when the crab is very young. fishing is thriving in the region. the crab moves to less salty water. a significant percentage of the population is impacted.
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Biology, 22.06.2019 07:30
Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.
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Biology, 22.06.2019 14:30
All annelids and arthropods have a blank body plan . unlike annelids, arthropods also have blank . the circulatory system of annelids is blank , while circulatory system of arthropods is blank .
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)consider a pea plant- it has a gene controlling seed color- yellow vs green; another gene controll...
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