Axial position of flower is dominant so A and for terminal is a monohybrid cross between true axial position of flower×true terminal position of flower . AA×aa then all four progeny are Aa .all are axial position of flower. and for f2 generation . Aa×Aa then progeny are Aa, Aa , aa, AA then for phenotype axial: terminal is 3:1, and for genotype 1:2:1

Monohybrid Cross

A monohybrid cross is a genetic cross between two individuals that differ in a single trait or characteristic. It is a controlled breeding experiment used to study the inheritance patterns of a single gene.

Axial Flower Position
- Axial flower position refers to the arrangement of flowers on a plant.
- In plants with axial flower position, the flowers are borne on the axis or stem of the plant.

Terminal Flower Position
- Terminal flower position refers to the arrangement of flowers at the end or apex of a stem or branch.
- In plants with terminal flower position, the flowers are clustered at the top of the stem or branch.

Monohybrid Cross between Axial and Terminal Flower Position
- In this monohybrid cross, we are interested in studying the inheritance of flower position, specifically the difference between axial and terminal flower position.

Genotype and Phenotype
- The genotype refers to the genetic makeup of an individual, while the phenotype refers to the physical characteristics or traits expressed by an individual.
- In this case, let's consider the genotype for axial flower position as "AA" and for terminal flower position as "aa". The uppercase "A" represents the dominant allele for axial flower position, while the lowercase "a" represents the recessive allele for terminal flower position.
- The phenotype for axial flower position would be plants with flowers borne on the axis or stem, while the phenotype for terminal flower position would be plants with flowers clustered at the top of the stem or branch.

Punnett Square
- To perform the monohybrid cross between axial and terminal flower position, we can use a Punnett square.
- The Punnett square is a grid used to predict the possible genotypes and phenotypes of the offspring from a genetic cross.
- In this case, the Punnett square would look like this:

| A | A
-------------------
a | Aa | Aa

- The offspring resulting from this cross would all have the genotype "Aa", which means they would all have the dominant axial flower position phenotype.

Conclusion
- In this monohybrid cross between axial and terminal flower position, the offspring would all exhibit the axial flower position phenotype, as it is determined by the dominant allele "A".
- This cross helps us understand the inheritance pattern of flower position and provides information about the presence or absence of a specific trait in the offspring.