Genetic drift is non-selective and therefore does not contribute to microevolution
Indicate whether the statement is true or false.
ANS: F, but does contribute to microevolution by changing allele frequencies
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Nerve impulses are electrical signals measured across which structure?
A. lipid sheath of Schwann cell B. plasma membrane of neuron C. synapse D. neuromuscular junction
The two copies of each type of chromosome found in normal somatic (body) cells in an organism, throughout the cell cycle, are called:
A. Homologous chromosomes B. Daughter chromosomes C. Kinetochores D. Sister chromatids
What is the blind spot, and why does it occur?
What will be an ideal response?
Prader-Willi (PW) and Angelman syndromes (AS) are imprinting disorders of the same region on chromosome 15. Normally, the genes associated with PW are ________ imprinted (silenced), and the one gene associated with AS is ________ imprinted (silenced)
A) paternally; paternally B) paternally; maternally C) maternally; paternally D) randomly; paternally E) maternally; randomly