Question: Which of the following is the first law of inheritance?
A Law of Independent Assortment
B Law of Dominance
C Law of Segregation
D Law of Multiple Alleles
Answer: Law of Segregation
| Aspect |
Gregor Mendel first law of inheritance |
Gregor Mendel second law of inheritance |
| Known as |
· Law of Segregation |
· Law of Independent Assortment |
| Year of Discovery |
· 1865 |
· 1865 |
| Main Principle |
· Alleles segregate or separate during gamete formation.
· Each gamete carries only one allele for each trait. |
· Alleles for different traits segregate independently during gamete formation. |
| Mendelian Ratios |
· 3:1 phenotypic ratio
· 1:2:1 genotypic ratio. |
· 9:3:3:1 |
| Example |
· Pea plant color |
· pea plant color
· Seed shape |
| Genetic Variation |
· Contributes to genetic diversity within a single trait. |
· Contributes to increased genetic diversity by considering the inheritance of multiple traits. |
| Mathematical Models |
· Utilized in Punnett squares for monohybrid crosses. |
· Utilized in Punnett squares for dihybrid crosses. |
