Variation

Question 1

Three Conditions Necessary for Natural Selection:

a. __ in traits: individuals in a population differ in __
b. ___: Differences have a genetic __ that can be passed onto __
c. Variation in ___ : some individuals are more ___ at surviving and ___ than others

Answer 1

a. Variation in traits: phenotype
b. Heredity: basis, offspring
c. Variation in fitness: successful, reproducing

Question 2

Two types of Phenotypic Variation:
1. Discrete
a. controlled by __ or a few loci and one or a few ___
Example (Lab coat color)
b. Straight forward prediction of cross ___ inheritance (3:1)

Answer 2

a. one, alleles

b. generational

Question 3

Two types of Phenotypic Variation:

2. Continuous
   a. Controlled by __ loci and alleles (____ inheritance)
   b. The majority of ___ (Height, mass, function etc)
   c. Genotypes ___

Answer 3

a. multiple (Polygenetic)
b. traits
c. unknown