Question

У людини карий колір очей домінує над голубим, чорне волосся над світлим. В сім"ї, де обидва батьки мали карі очі і чорне волосся, було двое дітей: обоє кароокі, одна із світлим волоссям, інша темним. Визначте можливі генотипи батьків.​

Answer 1

А - карий колір очей, а - голубий;

В - чорне волосся, в - світле.

P: ААВв       ААВв

F1: ААВв       ААвв

Answer 2

Possible Genotypes of the Parents

To determine the possible genotypes of the parents, we need to consider the traits of eye color and hair color. Let's break down the information provided:

- The person in question has brown eyes dominating over blue eyes. - The person has black hair dominating over light hair. - In a family where both parents have brown eyes and black hair, there are two children. - Both children have brown eyes, but one has light hair and the other has dark hair.

Based on this information, we can make some assumptions about the genotypes of the parents.

1. Eye Color: - Brown eyes are dominant over blue eyes. Let's represent the dominant allele for brown eyes as "B" and the recessive allele for blue eyes as "b". - Since both children have brown eyes, we can conclude that both parents must have at least one dominant allele for brown eyes. Therefore, the genotypes of both parents could be either "BB" or "Bb".

2. Hair Color: - Black hair is dominant over light hair. Let's represent the dominant allele for black hair as "H" and the recessive allele for light hair as "h". - One child has light hair, which means they must have inherited two recessive alleles for light hair ("hh"). - The other child has dark hair, which means they must have inherited at least one dominant allele for black hair. Therefore, the genotypes of both parents could be either "HH" or "Hh".

Combining the possible genotypes for eye color and hair color, we have the following possibilities for the parents:

- Parent 1: "BB" or "Bb" (for eye color) and "HH" or "Hh" (for hair color) - Parent 2: "BB" or "Bb" (for eye color) and "HH" or "Hh" (for hair color)

Please note that these are only possible genotypes based on the given information. Without further genetic testing or information, we cannot determine the exact genotypes of the parents.