1) Relatedness “r”

1) Relatedness “r”
• A) means degree of shared genetic similarity
among relatives over-and-above the baseline
genetic similarity within a population
• B) ranges from 0 to 1
• C) reflects the likelihood that two individuals
would share supposedly “altruistic” alleles
• D) affects the likelihood of the expression of
behaviors, such as alarm calling, between
• E) all of the above
2) br-c > 0
• A) is called Fisher’s Fundamental Theorum
• B) is called Hamilton’s rule
• C) describes the conditions under which a
gene affecting social behavior will experience
positive selection
• D) only applies in animals that live in social
groups where each one knows the relatedness
to each other
• E) B and C above, but not A or D
3) altruism
• A) does not really exist
• B) exists only in social species that consist of
close genetic kin
• C) can be explained by shared genes and/or
reciprocal interactions over time
4) haplodiploidy
• A) describes the genetic system in which males
develop from unfertilized eggs and are haploid
whereas females develop from fertilized eggs and
are diploid
• B) makes females more closely related to their
full sisters than they would be to their own
• C) contributes to an understanding of the
evolution of eusocial insects in the hymenoptera
• D) all of the above
5) eusociality
• A) involves the evolution of non-reproductive
• B) depends upon costs, benefits, and
relatedness of individuals
• C) is known in both vertebrates and
• D) all of the above
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