Fragile-X syndrome (or Martin-Bell syndrome) is the most common form of inherited mental retardation in humans. Is it more common in males or females? What is FMR1?
What will be an ideal response?
males (1/4000 compared to 1/8000 in females); FMR1 is one of a growing number of genes in which a sequence of three nucleotides is repeated many times, expanding the size of the gene.
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Based on the principle of species individuality, how would you predict that climate change would affect the geographical range of species within a community?
A. Each species would shift its range in a unique manner, according to its physiological needs. B. All species in the community would migrate together as a "superorganism", because all species are connected. C. Assemblages of species would migrate together in predictable groups. D. Only the competitively dominant species would shift their ranges; less competitive species cannot adapt to climate changes.
Where in a flowering plant should you expect meiosis to occur?
a. leaves b. roots and leaves c. flowers d. flowers, roots, and leaves e. roots
A spontaneous reaction releases energy. This type of reaction is ________
Fill in the blank with correct word.
What are two commonly used DNA landmarks for mapping human genes?
What will be an ideal response?