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Biology of Sex
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49
Biology
Undergraduate 2
02/16/2010

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Term
In scientific vernacular, a Law is __________ in that it predicts what will happen in a situation 
when the range of possible conditions is limited.
Definition
descriptive
Term
Quality of a hypothesis can be judged by   
Definition
how robust it is to new data  
Term
According to Strong et al. what is the most pervasive and influential medium affecting our view 
on sexuality?  
Definition
television
Term
What is the implicit message of media references to masturbation?
Definition
it’s performed only by adolescents and is therefore immature 
Term
A commonly accepted demarcation between science and non‐science is
Definition
falsifiability
Term
The definition of evolutionary relationship is based on 
Definition
common ancestry
Term
Normal sexual behavior can be defined as 
Definition
behavior that conforms to a group’s average behavior
Term
An example of the Red Queen hypothesis is 
Definition
co‐evolution of parasites and their hosts 
Term
The evolution of sex is
Definition
still not fully understood
Term
Sexual selection can result in 
Definition
exaggerated anatomical parts like peacock tail feathers
Term
The DNA molecule is composed, among other things,
Definition
cytosine and guanine
Term
During mitosis
Definition
spindle fibers pull the chromatids apart
Term
An adaptation is an advantageous feature that
Definition
has passed through more than one generation of selection
Term
In the research paper by Tiggemann et al., the authors found at least two body features that 
  were of concern to men.  These include
Definition
baldness and height 
Term
When evolution as defined only by “changes in gene frequency” that leaves out an important 
  component of the origins of biodiversity called
Definition
speciation
Term
Kellogg Corn Flakes are relevant to this class because
Definition
the were originally invented to decrease masturbation
Term
According to Allgeier et al., Victorian stereotypes of women as non‐sexual
Definition
still affect behavior today
Term
In ancient Greece it was common for a male to 
Definition
be in a homosexual relationship as a boy, marry a woman, then take a boy as a    
    lover/pupil 
Term
One way to evaluate the quality of a hypothesis is whether it is
Definition
consilient with other data
Term
The correct order of the phases of mitosis are
Definition

prometaphase, anaphase, telophase 

or

prophase, anaphase, telophase

Term
Chromosomal sex determination involves 
Definition
sex determining genes are on specific sex chromosomes
Term
Individuals with different copies of the same allele are called 
Definition
heterozygous
Term
Crossing over frequency between genes is determined by
Definition
proximity on the chromosome
Term
Fertilization of an egg is a complex process involving many steps, including
Definition
breakdown of the egg’s outer surface by enzymes from the acrosome of the sperm
Term
Independent assortment results from
Definition
maternal and paternal chromosome homologues sorting into daughter cells    
    independently of other pairs 
Term
An organism with a ZW sex chromosome set would be
Definition
a female
Term
Breeding asexually is like:
Definition
Having lots of lottery tickets all with the same number 
Term
What is the disease theory of sex?
Definition
Sex allows hosts to continue to change their genes in order to keep up with parasites
Term
Why will populations with two genders usually balance out to at 1:1 ratio?
Definition
 If one gender is rarer, it would be privileged and that would lead to increased 
numbers 
Term
The two sides to the sexual selection debate include the _____ side, which poses that the 
reason peahens prefer beautiful males is so their offspring can also be beautiful and attract 
mates, and the _____ side, which says that peahens prefer beautiful males because beauty is a 
sign of good genetic qualities.
Definition
“sexy‐son,” “healthy‐offspring”
Term
hypothesis
Definition
a tentative statement based on
observations or expectations from theory.  Hypotheses
are tested by experimentation or observation
Term
theory
Definition
an explanation of a range of observations that
include tested hypotheses by multiple researchers
Term
law
Definition
broad, universal statements.  They are limited to
simple statements, such as Newton’s laws of
mechanics. (III. For every action there is an equal and
opposite reaction.) Laws are descriptive, not
prescriptive-your cannot break the law of gravity
Term
 The most fundamental defining feature of science is
Definition
testability
Term
Ockham’s
Razor
Definition
the theory that we should choose the least complicated hypothesis
Term
when evaluating a hypothesis, these categories should be considered
Definition
testability,
quality of data, heuristics, predictability,
robustness
Term
corroborations of the hypothesis
Definition
data that tend to confirm a hypothesis
Term
 paradigm change
Definition
A period of conflict between older theory and
new theory ensues until a more explanatory
theory emerges and becomes widely accepted
Term
Leonardo da Vinci
Definition
pondered the
presence of mollusk shells on the
tops of mountains and thus
ti dth t bilit f th t
questioned the stability of the current
earth’s environment.
Term
Erasmus Darwin
Definition
He
pondered the origin of speciesand
pondered the origin of species and
came up with a description of sexual
selection
Term
Charles Lyell
Definition
Lyell popularizedaconcept in
Lyell popularized a concept in
geology called “uniformitarianism,”
which claimed that geological
processesinthepast weresimilar
processes in the past were similar
to those operating today. This
contrasted with “catastrophism,”
whichclaimedthat theearthand
which claimed that the earth and
life had been through many
creations and destructions, and
that onecouldnot extrapolatethe
that one could not extrapolate the
present from the record of the
past.
Term
Charles Darwin
Definition

wrote "The Origin of Species", came up with the theory of natural selection

theorized evolution "descent with modification"

Term
Richard Dawkins
Definition
Demonstrated how a monkey could eventually type an excerpt from Hamlet, drawing a parallel to natural selection
Term
A gene
Definition
is a section of DNA that influences
one or more hereditary traits in an
individual.
Term
Alleles are
Definition
different versions of a specific
gene
Term
germ cells
Definition
a specialized lineage of cells
within the body that undergo meiosis
Term
somatic cells
Definition
cells that undergo only mitosis
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