Genome is

Options

A. Genes of haploid set of chromosomes
B. Genes of diploid set of chromosomes
C. A single chromosome
D. None of the above

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Definition of Genome:**
- The term "genome" refers to the complete set of genetic material present in an organism. This includes all of its genes and non-coding sequences of DNA.

2. **Components of the Genome:**
- The genome consists of DNA, which is the primary molecule that carries genetic information. It includes both coding regions (genes) and non-coding regions of DNA.
- Additionally, the genome may also include mitochondrial DNA (mtDNA) and chloroplast DNA (cpDNA), which are important for cellular functions.

3. **Types of Genomes:**
- In the context of organisms, the genome can be described in terms of haploid and diploid sets of chromosomes.
- A haploid genome contains one complete set of chromosomes, which is typically found in gametes (sperm and egg cells).
- A diploid genome contains two complete sets of chromosomes, one from each parent.

4. **Analyzing the Options:**
- The options provided are:
- (1) Genes of the haploid set of chromosomes
- (2) Genes of the diploid set of chromosomes
- (3) A single chromosome
- (4) None of the above
- Based on the definition, the genome can be defined as the "genes of the haploid set of chromosomes" since it encompasses all genetic material in a gamete.

5. **Conclusion:**
- Therefore, the correct answer to the question "Genome is" is option (1) "genes of the haploid set of chromosomes."

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