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In a type of parakeet known as a "budgie", feather color is controlled by two genes. A yellow pigment is synthesized under control of a dominant allele Y. Recessive homozygotes with the yy genotype homozygous do not synthesize yellow pigment. At an independently assorting gene, the dominant allele B directs synthesis of a blue pigment. Recessive homozygotes with the bb genotype do not produce blue pigment. Budgies that produce both yellow and blue pigments have green feathers; those that produce only the yellow pigment or only the blue pigment have yellow or blue feathers, respectively; and budgies that produce neither pigment are white (albino). A cross of a green budgie and a yellow budgie produces offspring that are 12 green, 4 blue, 13 yellow, and 3 albino. What are the genotypes of the parents?
In Kartagener syndrome , the protein dynein is defective. This defect is due to a mutation in the gene coding for dynein. WHY do the functional consequences of the abnormalities in the dynein structure occur in this case? Please provide a complete..
Prepare an essay on nosocomial infection.
Suppose that you are conducting an experiment to determine the optimal best amount of fertilizer on tomato plants. You apply 0, 5, 10, 15, or 20 grams of fertilizer per plant.
Assume you have made a collection of mutant fruit flies that aredefective in several aspects of DNA repair. You test each mutantfor its hypersensitivity to 3-DNA damaging agents.
Stenohaline osmoconformers such as sea anemones and sea stars, pH of arterial blood is slightly higher than that of venous blood because
A analyzer is studying the inheritance of scale color in a new species of guppy. Base your answer on ALL of the following data.
define in your own words how Christian Anfinsen's ribonuclease renaturation experiments showed that amino acid sequence determines tertiary structure.
A bar graph is used instead of a line graph because every type of liver cell was independent of the others. Determine what variable did researchers intentionally vary in experiment, and what are the units for this variable?
If purple (P) is dominant to white (p) and axial (A) is dominant to terminal (a), and in a cross of white, axial to purple, axial the ratio of offspring is 3/8 white, axial; 1/8 white, terminal; 3/8 purple, axial; 1/8 purple, terminal, then what i..
In D. Melanogaster cherub wings(ch), black body (b) and cinnabar eyes (cn) result from recessive alleles tht are all located on chromosome 2. A homozygous wild-type fly was mated with a cherub, black, and cinnabar fly.
difference between Chlamydomonas cells and Volvox cells.
2-different mutations are identified in a haploid strain of yeast. The first prevents the synthesis of adenine by a nonsense mutation of the ade one gene.
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