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Sexual Selection, Timing and an X–Y Homologous Gene: Did Homo Sapiens Speciate on the Y Chromosome?

Tim J. Crow

in The Speciation of Modern Homo Sapiens

Published in print:
2004
Published Online:
January 2012
ISBN:
9780197263112
eISBN:
9780191734885
Item type:
chapter
Publisher:
British Academy
DOI:
10.5871/bacad/9780197263112.003.0011
Subject:
Archaeology, Prehistoric Archaeology

This chapter provides a theory of the speciation of modern Homo sapiens, that a single gene played a critical role in the transition from a precursor species. The theory is founded upon the ... More


The evolution of sex chromosomes

Leo W. Beukeboom and Nicolas Perrin

in The Evolution of Sex Determination

Published in print:
2014
Published Online:
August 2014
ISBN:
9780199657148
eISBN:
9780191748103
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199657148.003.0005
Subject:
Biology, Evolutionary Biology / Genetics

The chromosomes carrying the genes that determine sexes or mating types often show strong heteromorphy. This chapter discusses the evolutionary trajectories of sex chromosomes, from the initial ... More


Sexing the X

Sarah S. Richardson

in Sex Itself: The Search for Male and Female in the Human Genome

Published in print:
2013
Published Online:
May 2014
ISBN:
9780226084688
eISBN:
9780226084718
Item type:
chapter
Publisher:
University of Chicago Press
DOI:
10.7208/chicago/9780226084718.003.0006
Subject:
History, History of Science, Technology, and Medicine

Focusing on “X mosaicism” theories of female biology, health, and behavior, this chapter examines the longstanding and infrequently questioned association of the X with femaleness. Drawing strongly ... More


A Genetic or Immunological Mechanism Underlying Homosexuality?

Jacques Balthazart

in The Biology of Homosexuality

Published in print:
2011
Published Online:
January 2012
ISBN:
9780199838820
eISBN:
9780199919512
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/acprof:oso/9780199838820.003.0052
Subject:
Neuroscience, Neuroendocrine and Autonomic, Development

This chapter reviews studies on genetic mechanisms (control of predispositions) depending on the interaction of several genes that may play an important role in determining sexual orientation. These ... More


DNA Tests for Genetic Genealogy

Alan McHughen

in DNA Demystified: Unravelling the Double Helix

Published in print:
2020
Published Online:
July 2020
ISBN:
9780190092962
eISBN:
9780190092993
Item type:
chapter
Publisher:
Oxford University Press
DOI:
10.1093/oso/9780190092962.003.0009
Subject:
Biology, Bioethics

This chapter covers the different types of direct to consumer DNA tests for genealogy. They are technically similar but a bit different from those used for medical and health conditions, as genealogy ... More


Epigenetic Inheritance: Where Does the Field Stand Today? What Do We Still Need to Know?

Adam Wilkins

in Transformations of Lamarckism: From Subtle Fluids to Molecular Biology

Published in print:
2011
Published Online:
August 2013
ISBN:
9780262015141
eISBN:
9780262295642
Item type:
chapter
Publisher:
The MIT Press
DOI:
10.7551/mitpress/9780262015141.003.0040
Subject:
Biology, Evolutionary Biology / Genetics

This chapter presents some perspectives on where the field of epigenetic inheritance stands today. It emphasizes that the field is well established and currently is a huge research enterprise engaged ... More


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