Describe what hetrozygous means?

"Heterozygous" is a term used in genetics to describe a pair of genes where one is dominant and one is recessive. They're different forms of the same gene.

Here's a step-by-step explanation:

1. Every individual organism has two alleles for each trait, one from each parent. These alleles may be the same (homozygous) or different (heterozygous).

2. When an individual is heterozygous for a particular trait, it means they have two different versions (alleles) of the gene that codes for that trait. One allele is usually dominant, while the other is recessive.

3. The dominant allele is the one that gets expressed in the individual's physical appearance or biochemical processes (phenotype), while the recessive allele is "hidden".

4. For example, if we're talking about the gene for flower color in peas, the dominant allele might code for purple flowers and the recessive allele for white flowers. A pea plant that is heterozygous for flower color would have one allele for purple flowers and one for white flowers. Because the purple allele is dominant, the plant would have purple flowers.

5. However, the plant could still pass on the white flower allele to its offspring. If it mates with another plant that also has a white flower allele, their offspring could end up with white flowers. This is how recessive traits can be carried through generations without being seen.

6. In summary, being heterozygous for a trait means having two different alleles for a gene - one dominant and one recessive. The dominant allele determines the organism's appearance, but the recessive allele can still be passed on to offspring.