How is a microarray used to scan for mutations in a genome?
What will be an ideal response?
DNA is extracted from cells and cut with one or more restriction enzymes. The fragments are fluorescence tagged, denatured, and annealed to the DNA in the array. Massive amounts of DNA can be screened for sequence changes in a relatively short period of time. It is possible to detect single nucleotide changes under optimal conditions, possibly providing information of a diseased state.
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In radishes, two incompletely dominant genes control color and shape. Red (R) is dominant over white (r), and
heterozygotes are purple. Long (L) is dominant over round (l), and heterozygotes are oval. If a true-breeding red, long radish is crossed with a true-breeding white round radish, give the F2 genotypic and phenotypic ratios. What will be an ideal response?
What is the difference between red marrow and yellow marrow?
What will be an ideal response?
The tissue type that covers internal and external surfaces of organs, aids in protection, nutrition absorption, and gas diffusion is the _______ tissue.
A. connective B. nervous C. muscle D. epithelial E. All of the answer choices are correct.
Genetic drift is more common in large populations than in small populations
Indicate whether the statement is true or false