Respuesta :
Answer:
A monohybrid cross refers to a genetic amalgam between the two organisms who possess homozygous genotypes, or the genotypes, which exhibit completely recessive or dominant alleles that results in conflicting phenotypes for some kind of genetic trait.
Monohybrid crosses are studied by the geneticists in order to witness how the offspring of homozygous individuals demonstrate the heterozygous genotypes they have acquired from their parents. Generally, it helps in determining the dominant genotype.
The cross can also help to signify a genetic amalgam between the two individuals who exhibit heterozygous genotypes, this confirms the dominance of an allele. In a monohybrid cross, the phenotypic ratio of dominant: recessive is 3: 1. Thus, out of 1000, 750 F2 seed is expected to show dominant phenotype.
A 750 dominant phenotype is expected from the 1000 F2 seeds from a monohybrid cross.
Further explanation:
A monohybrid cross means the genetically mixing of two characteristics of an individual with homozygous genotypes. They can either have completely dominant or completely recessive alleles. This results in a completely different phenotype for a few genetic traits. This method is used to classify that how an individual with homozygous characteristics shows heterozygous genotypes. This mix helps in determining the dominant genotype and allele.
Mendel postulates the monohybrid cross. He performed seven monohybrid crosses. On the basis of that he says, each parent contributes one of two characters to each offspring. It leads to every possible combination. In the monohybrid cross, the possible dominant phenotypes are 3:1. Thus, the expected outcome of the 1000 F2 seeds will show a 750 dominant phenotype.
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Answer Details:
Grade: High school
Subject: Biology
Chapter: Central Nervous System.
Keywords:
Dominant, phenotype, monohybrid, genetically, individual, homozygous, genotypes, trait, alleles, heterozygous, characteristic.
