#Question id: 4643
#Unit 11. Evolution and Behavior
The treeʹs horizontal axis is a timeline that extends from 100,000 years ago to the present; the vertical axis represents nothing in particular. The labeled branch points on the tree (V—Z) represent various common ancestors. Letʹs say that only since 50,000 years ago has there been enough variation between the lineages depicted here to separate them into distinct species, and only the tips of the lineages on this tree represent distinct species.
How many separate species, both extant and extinct, are depicted in this tree?
#Question id: 707
#Unit 1. Molecules and their Interaction Relevant to Biology
A repeating structural unit in a multimeric protein is known as a(n):
#Question id: 18379
#Unit 12. Applied Biology
#Question id: 5705
#Unit 8. Inheritance Biology
The chromosome has been broken at two points, and the segment between them has been inverted. What will be affects of this inversion however, person is heterozygous this abnormality?
#Question id: 3277
#Unit 11. Evolution and Behavior
Which of the following describes the most likely order of events in allopatric speciation?