Members of two populations in different parts of the world have the same form of inherited breast cancer. The affected individuals in each population have only one specific mutation, but it is different between the two populations. An explanation for this mutation difference among these populations is
A) a founder effect.
B) mutations associated with religion.
C) random mating.
D) Hardy-Weinberg disequilibrium.
A) a founder effect.
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The process of beer lagering involves ________.
A. distillation B. aging C. carbonation D. None of the choices are correct.
Pairs of alleles are found at a particular ____ on a pair of ____
a. gene; gametes b. base; homozygous genes c. nucleotide; genes d. locus; homologous chromosomes e. sister chromatid; homologous chromosomes
The unique feature of HeLa cells that make them important for research is that they are
a. identical to all other human cells. b. immortal cells and will grow in culture. c. limited in growth cycles. d. identical to stem cells. e. cannot propagate.
Which of these correctly describes the distribution of ions on either side of an axon when it is not conducting a nerve impulse?
A. more sodium ions (Na+) outside and more potassium ions (K+) inside B. K+ outside and Na+ inside C. charged protein inside D. both and d are correct