If there are 32 sister chromatids in a normal somatic cell, what is the haploid number for that cell?
Understand the Problem
The question is asking us to determine the haploid number of chromosomes in a normal somatic cell based on the given number of sister chromatids. Each chromosome has two sister chromatids, so to find the haploid number, we will divide the number of sister chromatids by 2.
Answer
The haploid number is \( \frac{n}{2} \) where \( n \) is the number of sister chromatids.
Answer for screen readers
The haploid number of chromosomes in a normal somatic cell is given by the equation ( n_{haploid} = \frac{n}{2} ), where ( n ) is the number of sister chromatids.
Steps to Solve
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Identify sister chromatids
We need to identify the number of sister chromatids provided in the problem. For example, let's say the number of sister chromatids is given as (n). -
Determine the number of chromosomes
Since each chromosome consists of two sister chromatids, we can find the total number of chromosomes by dividing the number of sister chromatids by 2.
The equation will be: $$ \text{Number of chromosomes} = \frac{n}{2} $$ -
Calculate the haploid number
The haploid number (denoted as (n)) is half of the diploid number (total chromosome count). Therefore, the haploid number is equal to the number of chromosomes already calculated. It can be denoted as: $$ n_{haploid} = \frac{n}{2} $$ -
Provide final interpretation
Lastly, interpret the final value which represents the haploid number of chromosomes in a normal somatic cell based on the sister chromatids identified earlier.
The haploid number of chromosomes in a normal somatic cell is given by the equation ( n_{haploid} = \frac{n}{2} ), where ( n ) is the number of sister chromatids.
More Information
The haploid number is important in genetics as it represents the number of chromosomes in gametes (sperm and egg cells). In humans, the haploid number is 23, while the diploid number is 46.
Tips
- Forgetting to divide by 2: A common mistake is forgetting to divide the total number of sister chromatids by 2 to find the number of chromosomes.
- Confusing haploid with diploid: Ensure you understand that the haploid number is half of the diploid number.
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