What is the evolutionary advantage of extra-pair copulations in birds?
A. For males, the chance to have other females (thought to be the sisters of the mates) assist with the rearing of the offspring and for females, increased reproductive success.
B. For males, increased reproductive success and for females, the chance to mate with genetically superior individuals.
C. For males, increased reproductive success and for females, the chance to have other females (thought to be the sisters of the mates) assist with the rearing of the offspring.
D. For males, the chance to mate with genetically superior individuals and for females, increased reproductive success.
Answer: B
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The phrase "Modern Synthesis" refers to:
A. the synthesis of Darwin's ideas about evolution with Malthus' ideas about population growth. B. the synthesis of Darwin's and Wallace's independently developed ideas about natural selection and adaptation. C. the synthesis of Darwin's ideas about natural selection and Mendelian genetics. D. the synthesis of Darwin's ideas about natural selection and modern DNA sequencing technology. E. all of the answer options are correct.
RNA is significantly less stable than DNA. Based on the structural differences between these molecules, what is a
plausible hypothesis as to why this is?
What will be an ideal response?Synaptic integration means that:
a. all positive or excitatory stimuli are added together b. the positive and negative ions neutralize each other c. excitatory and inhibitory signals are combined in a postsynaptic neuron d. adjacent neurons interact so that excitatory and inhibitory stimuli cancel each other e. one neurotransmitter signal is received at a time
The huge diversity of antibody molecules is generated by the shuffling of gene segments in T cells. Indicate whether the statement is true or false