Question

Axial flowers are a dominant trait in pea plants, and terminal flowers are a recessive trait. Which genotype represents a plant that has homozygous dominant genes for axial flowers?
A.
aa
B.
Aa
C.
AA
D.
AAaa

Answer 1

Required Answer:-

Since the statement of Mendel says that, there can be homozygous and heterozygous traits on the basis of genotype in which the dominant species will suppress the other.

Homozygous trait is the one having both characters same. Here there can be two such cases$:$

• AA (Homozygous dominant)
• aa (Homozygous recessive)

Axial flowers are the dominant genes and their genotype is homozygous, Hence the genotype will be: AA

Also here:

There can be four types of possibilities in the F2 generation of this cross:

• AA (Axial flowers)
• Aa (Axial flowers)
• Aa (Axial flowers)
• aa (Terminal flowers)

There's 75% chances of getting axial flowers and 25% chances of getting terminal flowers in the F2 generation of the above Monohybrid cross.

Answer 2

Since the statement of Mendel says that, there can be homozygous and heterozygous traits on the basis of genotype in which the dominant species will suppress the other.

Homozygous trait is the one having both characters same. Here there can be two such cases::

AA (Homozygous dominant)

aa (Homozygous recessive)

Axial flowers are the dominant genes and their genotype is homozygous, Hence the genotype will be: AA

Also here:

There can be four types of possibilities in the F2 generation of this cross:

AA (Axial flowers)

Aa (Axial flowers)

Aa (Axial flowers)

aa (Terminal flowers)

There's 75% chances of getting axial flowers and 25% chances of getting terminal flowers in the F2 generation of the above Monohybrid cross.