A Mendel's law which does not have any exception is

Options

A. Law of dominance
B. Law of segregation
C. Law of independent assortment
D. None have all exceptions

Answer

To determine which of Mendel's laws does not have any exceptions, we can analyze each of his laws one by one.

### Step 1: Identify Mendel's Laws
Mendel formulated three main laws:
1. Law of Dominance
2. Law of Segregation
3. Law of Independent Assortment

### Step 2: Analyze the Law of Dominance
The Law of Dominance states that in a heterozygous condition, the dominant allele will mask the expression of the recessive allele. However, there are exceptions to this law, such as incomplete dominance and codominance, where both alleles can express themselves.

**Hint:** Consider whether the dominant allele always masks the recessive allele in all cases.

### Step 3: Analyze the Law of Segregation
The Law of Segregation states that during gamete formation, the two alleles for a trait segregate from each other so that each gamete carries only one allele for each trait. This law does not have exceptions and holds true in all cases of Mendelian inheritance.

**Hint:** Think about whether alleles can remain together during gamete formation.

### Step 4: Analyze the Law of Independent Assortment
The Law of Independent Assortment states that alleles for different traits segregate independently of one another during gamete formation. However, this law also has exceptions, particularly in cases of linked genes that are located close to each other on the same chromosome.

**Hint:** Consider if the segregation of one trait affects the segregation of another trait.

### Conclusion
After analyzing the three laws, we conclude that the **Law of Segregation** is the Mendelian law that does not have any exceptions.

**Final Answer:** The Mendel's law which does not have any exception is the Law of Segregation.