In Neurospora both recessive and dominant alleles express their effect because

Options

A. Two gens control each character
B. There are tow allesles for eacch character
C. The organism contains only one allele for a gene
D. Each gene has only one allele

Answer

**Step-by-Step Solution:**

1. **Understanding Neurospora**: Neurospora is a type of fungus that is commonly used in genetic studies. It is important to note that Neurospora is a haploid organism, meaning it has only one set of chromosomes.

2. **Haploid vs. Diploid**: In diploid organisms, there are two alleles for each gene (one from each parent), which can be dominant or recessive. However, in haploid organisms like Neurospora, there is only one allele for each gene present on the single chromosome.

3. **Expression of Alleles**: Since Neurospora has only one allele for each gene, both the recessive and dominant alleles can express their effects. This is because there is no second allele to mask the expression of the recessive allele.

4. **Conclusion**: Therefore, in Neurospora, both recessive and dominant alleles express their effects because the organism is haploid and contains only one allele for each gene, allowing both types of alleles to be expressed simultaneously.

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