Why are observations of meiotic drive and driver alleles relatively rare?
a. The selective advantage of drivers in heterozygotes is balanced by fitness loss in homozygotes.
b. Most driver alleles become rapidly fixed in populations.
c. Fitness advantages of driver alleles are too small to lead to an increase of the alleles in the population.
d. Most driver alleles arise in small populations and are rapidly lost by genetic drift.
B
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Animals with bilateral symmetry typically have (select all that apply):
A. distinct front (head) and back (tail) ends. B. specialized sensory organs clustered at the front, or head, end. C. specialized appendages along both sides for locomotion. D. specializations for rapid locomotion in all directions. E. complex behavior.
We can calculate whether a reaction is spontaneous by calculating the change in free energy and accounting for
entropy. Your paycheck always lists your gross pay, net (take home) pay, and tax withholdings. Which of the following best correlates your paycheck to the changes in free energy?
a. gross salary = net salary - tax; total energy = free energy - entropy b. net salary = gross salary - tax; free energy = total energy - entropy c. tax = gross - net salary; entropy = total energy - free energy d. gross salary = tax - net salary; total energy = entropy - free energy e. net salary = gross salary + tax; free energy = total energy + entropy
How are prokaryotic and eukaryotic genomes different?
a. Prokaryotic genomes are loops of double stranded DNA, while eukaryotic genomes are double stranded linear DNA molecules. b. Prokaryotic genomes are smaller than eukaryotic genomes. c. Prokaryotic genomes are larger than eukaryotic genomes. d. Eukaryotic genomes are loops of double stranded DNA, while prokaryotic genomes are double stranded linear DNA molecules.
People with a large amount of which tissue are least
likely to be sensitive to cold? a. cartilage b. adipose c. blood d. dense connective e. bone