Question

dominance and recessive trait​

Answer 1

Explanation:

The trait that first appears or is visibly expressed in the organism is called the dominant trait. The trait that is present at the gene level but is masked and does not show itself in the organism is called the recessive trait. ... However, more and more the word allele is used interchangeably for gene.

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Answer 2

Dominant Trait

• Dominant traits are always expressed when the connected allele is dominant, even if only one copy exists.
• Dominant allele is denoted by a capital letter.
• Examples in Humans  -

1. V-shaped hairline
2. Almond-shaped eyes
3. Right handedness
4. Detached earlobes
5. Dark hair
6. Brown eyes

Recessive Trait

• Recessive traits are expressed only if both the connected alleles are recessive. If one of the alleles is dominant, then the associated characteristic is less likely to manifest.
• Recessive allele is denoted by a small letter.
• Examples in Humans  -

1. Straight hairline
2. Round eyes
3. Left handedness
4. Attached earlobes
5. Blond hair, red hair
6. Blue eyes (can also be a polygenetic trait)