During ur last shift, 20 babies were born. 10 had blue eyes, and 10 had brown eyes
b- brown b- blue
given the phenotypes, what are the possible genotypes for these babies

Possible genotypes and their frequencies

Frequency of babies with blues eye having genotype "bb" is

Frequency of babies with brown eye having genotype "Bb" is

Frequency of babies with brown eye having genotype "BB" is

Explanation:

In a normal human being, brown eye color is dominant over blue eye color.

Thus B is dominant over b

Now,

Babies with blue eye colour will have genotype "bb" because it is a recessive trait thus both the alleles must be the recessive allele.

Therefore,

Thus

While the genotype of brown babies can be either homozygous dominant or heterzygous dominant

Now as per Hardy Weinberg's equation -

so

Thus frequency of babies with genotype "BB" is equal to

Now frequency of babies with genotype "Bb" is

Thus,

Frequency of babies with blues eye having genotype "bb" is

Frequency of babies with brown eye having genotype "Bb" is

Frequency of babies with brown eye having genotype "BB" is

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ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).