Video answering a question about a refrigerator's defrost cycle. This video answers the question of how often does a refrigerator go into defrost. If you have questions about appliances that you want an answer to, leave them in the comment section below.ideo answering a question about a refrigerator's defrost cycle. This video answers the question of how often does a refrigerator go into defrost. If you have questions about appliances that you want an answer to, leave them in the comment section below.
1 Species Fusion-two species in a hybrid zone may have weak reproductive isolating barriers, and the two species may, over time, eventually share a common gene pool. 2  Species Stability/Hybrid Equilibrium-Hybrids are continually produced by the two parent populations in a hybrid zone.
Genes are found on the chromosomes in a cell. The combinations of genes for each trait occur by chance. When one gene in a pair is stronger than the other gene, the trait of the weaker gene is masked, or hidden. The stronger gene is the dominant gene, and the gene that is masked is the recessive gene.Dominant genes are written as capital letters and recessive genes are written as lowercase letters. If both genes in a gene pair are the same, the trait is said to be homozygous, or pure.enes are found on the chromosomes in a cell. The combinations of genes for each trait occur by chance. When one gene in a pair is stronger than the other gene, the trait of the weaker gene is masked, or hidden. The stronger gene is the dominant gene, and the gene that is masked is the recessive gene.