Classical Genetics 1 - Mendelian Genetics

Question 1

Describe Mendel’s pea plant cross experiment

Answer 1

• Removed stamens from a purple flower.
• Transferred pollen from stamens of a white flower to carpel of the purple flower.
• The pollinated carpel matured into a pod.
• The seeds from the pod were then planted to produce the first generation of offspring. All flowers in F1 generation were purple.

Question 2

State and describe the Mendelian laws

Answer 2

Law of segregation

• For each gene an individual has two alleles.
• The two alleles separate during the formation of gametes.

Law of independent assortment

• Individuals contain many genes.
• The alleles of each gene separate independent from each other.

Law of dominance
- The trait of a dominant allele will suppress the trait of a recessive allele.