4. Evolutionary Significance of Genetic Variation

Question 1

Variation

Answer 1

individual variation in a population

Question 2

Heredity

Answer 2

progeny resemble their parents more than unrelated individuals

Question 3

Fitness

Answer 3

some forms are successful at surviving and breeding than others in an environment (natural selection)

Question 4

Where Heritable variation Comes From

Answer 4

1) Mutation
2) Independent assortment
3)Recombination

Question 5

Types of mutations

Answer 5

1. Insertion
2. Deletion
3. Duplication
4. Inversion

Question 6

Mendel Pea Experiment Ideas

Answer 6

1) Inheritance is determined by discrete particles (Genes)
2) Each diploid organism carries 2 copies of each gene
3) Gametes fuse to make offspring (Gametes contain only 1 allele per gene) -sperm and egg
4) Offspring inherit one gamete from each parent at random

Question 7

Discrete/ Discontinuous Traits

Answer 7

Simple ‘mendelian’ genetics

Question 8

Continuous/ Complex/ Quantitative

Answer 8

Complex Inheritance

Question 9

Quantitative Genetic Inheritance

Answer 9

relation between gene number and phenotypic variability