HEREDITY
MONOHYBRID CROSS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
they have same phenotype and genotype
|
|
|
they have different genotypes and phenotypes
|
|
|
they have same phenotype but different genotypes
|
|
|
they have same genotype but different phenotypes
|
Detailed explanation-1: -Of these three genotypes, only bb, the homozygous recessive genotype, will produce a phenotype of blue eyes. The heterozygous genotype and the homozygous dominant genotype both will produce brown eyes, though only the heterozygous genotype can pass on the gene for blue eyes.
Detailed explanation-2: -One brother has genotype BB and the other brother has genotype Bb. Which statement is true about these two brothers? They have same phenotype, but different genotypes.
Detailed explanation-3: -What is true about two brothers that have brown eyes? One has genotype BB the other Bb. The passing of genetic traits from parent to offspring.
Detailed explanation-4: -Phenotype shown as brown or blue while dominant brown gene = B and recessive blue gene = b Individuals with bb have blue eyes, while individuals with BB or Bb have brown eyes. Blue or brown describes only a portion of eye colour.