How many chromosomes will be there in the zygote of human ?

Answer

To determine the number of chromosomes in a human zygote, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Gametes**:
- In humans, there are two types of gametes: the sperm (male gamete) and the egg (female gamete).
- Each gamete is haploid, meaning it contains a single set of chromosomes.

2. **Chromosome Count in Gametes**:
- The sperm contains 23 chromosomes.
- The egg also contains 23 chromosomes.

3. **Fusion of Gametes**:
- When the sperm and egg unite during fertilization, they form a zygote.
- This process is known as fertilization.

4. **Total Chromosome Count in Zygote**:
- The zygote is formed by the combination of the chromosomes from both the sperm and the egg.
- Therefore, the total number of chromosomes in the zygote is:
- 23 (from sperm) + 23 (from egg) = 46 chromosomes.

5. **Zygote's Chromosome Configuration**:
- Since the zygote contains chromosomes from both parents, it is diploid.
- This means it has two sets of chromosomes, one from each parent.

6. **Conclusion**:
- In humans, the zygote will have a total of 46 chromosomes, which can also be expressed as 23 pairs of chromosomes.

### Final Answer:
The zygote of a human will have 46 chromosomes.

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