Tall (D) is dominant to dwarf (d). Give the F2 genotypic and phenotypic ratios of a cross between a
pure-breeding, tall plant and a pure-breeding, dwarf plant. What will be an ideal response?
1 DD, 2 Dd, 1 dd; 3 tall, 1 dwarf
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The theory of endosymbiosis explains:
A. the reason for the human biome. B. the mutually beneficial relationship between two organisms, both of which are capable of living independently. C. how bacteria came to inhabit the human intestine. D. the origin of mitochondria and chloroplasts.
Which of the following images represents the expected results of a DNA gel for three individuals with different genotypes-homozygous dominant (lane 1), heterozygote (lane 2), and homozygous recessive (lane 3)?
What will be an ideal response?
A South San Francisco child enjoyed bath time at his home because of the colorful orange and red water
The water did not have this rusty color at its source, and the water department could not culture the Thiobacillus bacteria responsible for the rusty color from the source. How were the bacteria getting into the household water? What bacterial structures make this possible?
Cells with two of each kind of chromosome are described by the term
A) polyploid. B) diploid. C) triploid. D) haploid. E) tetraploid.