A. DNA material coiled up in a pile.
Answer: Option A
Explanation:
The heterozygous allele can be defined as the condition in which the organism has two different alleles of the gene.
It is represented as Rr, means a capital letter and a small letter. This hows that the organism has one dominant gene and one recessive gene in it.
This dominant and recessive condition decides the genotype and phenotype of organism.
True, a lot of cultivated fields use fertilizers that can be harmful to fish
1. observing
2. forming hypotheses
3. testing hypotheses
4. analyzing data
5. evaluating results
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