Describe why continuous variation is common in humans and provide examples of such traits

Describe the genetic origins of biological variation.

How can we understand human variation as adaptation to the physical, biological and cultural environment?

Why is variation beneficial to the species but not necessarily for the individual?

Please read the scenario below and answer the question (in bold) that follows: Spider-Man and Spider-Woman are planning to have children in the near future. Spider-Man is able to spin webs (S) and cling to walls (C), whereas Spider-Woman can spin webs but cannot cling to walls. If both of these traits are inherited in a dominant manner (i.e., the dominant trait will always mask the recessive trait), Spider-Man is heterozygous for each trait, and Spider-Woman is heterozygous for the web-spinning trait...   What would be the phenotypic ratio of the F1 generation? Please note that: "S" = ability to spin webs; "NS" = cannot spin webs; "C" = ability to cling to walls; and "NC" = cannot cling to walls.   a. 2 S/C : 6 S/NC : 6 NS/C : 2 NS/NC   b. 4 S/C : 4 S/NC : 4 NS/C: 4 NS/NC   c. 8 S/C : 2 S/NC : 2 NS/C : 4 NS/NC   d. 6 S/C : 6 S/NC : 2 NS/C : 2 NS/NC   e. None of the above

Please read the scenario below and answer the question (in bold) that follows: Spider-Man and Spider-Woman are planning to have children in the near future. Spider-Man is able to spin webs (S) and cling to walls (C), whereas Spider-Woman can spin webs but cannot cling to walls. If both of these traits are inherited in a dominant manner (i.e., the dominant trait will always mask the recessive trait), Spider-Man is heterozygous for each trait, and Spider-Woman is heterozygous for the web-spinning trait... What is Spider-Man's genotype?   a. SSCc   b. SsCc   c. SSCC   d. ssCC   e. Sscc   What is Spider-Woman's genotype?   a. SSCc   b. SsCc   c. SSCC   d. ssCC   e. Sscc