If gene frequency between genes a & c is 2%, b & c is 13%, b & d is 4%, a & b is 15%, c & d is 17% and a & d is 19%, What will be the sequence of these genes in a chromosome?

Acbd

Dbac

To determine the sequence of genes on a chromosome based on gene frequencies, we need to consider the relative location of the genes and the percentage of their association.

Let's analyze the given gene frequencies:

1. Gene a and gene c have a frequency of 2%. This suggests that both genes appear together in the chromosome only 2% of the time.

2. Gene b and gene c have a frequency of 13%. This suggests that both genes appear together in the chromosome around 13% of the time.

3. Gene b and gene d have a frequency of 4%. This suggests that both genes appear together in the chromosome approximately 4% of the time.

4. Gene a and gene b have a frequency of 15%. This suggests that both genes appear together in the chromosome about 15% of the time.

5. Gene c and gene d have a frequency of 17%. This suggests that both genes appear together in the chromosome approximately 17% of the time.

6. Gene a and gene d have a frequency of 19%. This suggests that both genes appear together in the chromosome around 19% of the time.

Based on these frequencies, we can construct a sequence of the genes on the chromosome by analyzing the overlapping gene pairs.

Let's analyze the pair with the highest frequency, which is the pair a and d with a frequency of 19%. This indicates that gene a and gene d are adjacent to each other on the chromosome.

Now, let's consider the pair with the second-highest frequency, gene c and gene d with a frequency of 17%. This suggests that gene c is also adjacent to gene d on the chromosome.

Next, let's consider the pair with the third-highest frequency, gene b and gene c with a frequency of 13%. This suggests that gene b is adjacent to gene c on the chromosome.

Now, we have the sequence a-d-c-b.

Finally, let's analyze the pair with the fourth-highest frequency, gene a and gene b with a frequency of 15%. This suggests that gene a is adjacent to gene b on the chromosome.

Based on this, we can conclude the final sequence of the genes on the chromosome as follows:

a-d-c-b

Therefore, the sequence of these genes on the chromosome is a-d-c-b.