Question
How many possible combinations of alleles can di-hybrid 'Dots' produce?
Four combinations
Six combinations
Two combinations
Eight combinations
Four combinations
Six combinations
Two combinations
Eight combinations
Answers
Answered by
GPT-4o mini
In a dihybrid cross involving two traits, each trait is typically represented by two alleles (one from each parent). If we assume that each trait can have two different alleles (let's say A/a for the first trait and B/b for the second trait), then the possible combinations of alleles can be calculated using the formula \( 2^n \), where \( n \) is the number of traits.
For a dihybrid cross:
- There are 2 traits (A/a and B/b)
- Therefore, \( n = 2 \)
Using the formula:
\[
2^n = 2^2 = 4
\]
The possible combinations of alleles are:
1. AB
2. Ab
3. aB
4. ab
Thus, for a dihybrid cross with two traits, there are **four combinations** of alleles.
The correct answer is: **Four combinations**.
For a dihybrid cross:
- There are 2 traits (A/a and B/b)
- Therefore, \( n = 2 \)
Using the formula:
\[
2^n = 2^2 = 4
\]
The possible combinations of alleles are:
1. AB
2. Ab
3. aB
4. ab
Thus, for a dihybrid cross with two traits, there are **four combinations** of alleles.
The correct answer is: **Four combinations**.