The observation by scientists that flies preferentially mate with those of similar phenotypes illustrates
random mating. Indicate whether the statement is true or false.
F, assortative
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An organism grown in a high nutrient liquid broth to high turbidity always appears to produce a blue pigment and even when a large inoculum is transferred to a nutrient rich agar plate it appears blue
When the researcher noticed it never appears blue when very small colonies were grown in low nutrient agar plates. What is the most plausible conclusion? A) Large populations enabled the differentiation of a subpopulation of cells that created the blue pigment. B) Only high nutrient conditions provide enough energy for cells to produce this secondary metabolite that appears blue. C) The blue pigment production is linked to quorum sensing. D) The strong gradient from very high to low nutrient bioavailability induces production of the blue metabolite.
Archaea genomes contain introns
Indicate whether the statement is true or false.
In a DNA profile analysis using two loci, the chance of a match between two unrelated individuals at one locus is 1 in
400, and 1 in 1000 at the second locus. Therefore, the overall probability that two unrelated individuals will match at both loci is ____________________. Fill in the blank(s) with the appropriate word(s).
Which polysaccharide is produced by both fungi and arthropods?
A) Chitin B) Glucose C) Cellulose D) Glycogen E) Fructose