Morning glories can have blue, purple, or red flowers. flower color is controled by two genes. blue color is produced when at least one dominant allele is present at both genes, a and b. purple flowers result when a dominant allele is present at only one of the two gene loci, a or b. flowers are red when the plant is homozygous for two recessive alleles at each gene (i. e., aabb). two pure-breeding purple strains are crossed, and all the f1 plants have blue flowers.
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Biology, 22.06.2019 03:00
Which set of characteristics best describes sedimentary rock? a) largest type of rock, made of organic matter, hardest type of rock b) often contains layers, forms near sources of water, contains fossils c) least abundant type of rock, made of other rocks, made mostly of minerals d) most abundant type in earth's crust, made of magma/lava, contains no fossils
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Biology, 22.06.2019 07:00
Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.
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Biology, 22.06.2019 07:00
Diabetes is often suspected when glucose shows up in urine tests. use the model to explain how glucose could be present in urine. why do you think this symptom is especially concerning for young people?
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Biology, 22.06.2019 09:00
The spermists believed that: the male made the only hereditary contribution to the offspring the male and female traits were blended in the offspring the female made the only hereditary contribution to the offspring the male and the female made equal contributions to the next generation
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Morning glories can have blue, purple, or red flowers. flower color is controled by two genes. blue...
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