All the offspring of a cross between a tall pea plant and a dwarf pea plant are tall. this means that the allele for tall plants is the allele for dwarf plants.

All the offspring of a cross between a tall pea plant and a dwarf pea plant are tall. This means that the allele for tall plants is DOMINANT OVER the allele for dwarf plants.

Explanation:

Mendel's law of dominance state that the heterozygous genotype expresses only one allele of a gene out of the two alleles present together. The allele that is expressed in a heterozygous genotype is said to be the dominant one as it does not allow the expression of another allele of the gene.

The allele of a gene that is not expressed in the presence of its dominant allele is said to be the recessive one. Under such conditions, a heterozygous genotype expresses the dominant phenotype. When a tall and dwarf pea plants are crossed, all the F1 progeny is tall. This means that the allele for the tallness is dominant over the allele for the dwarfism.

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation:

the wires in the toaster turning red and the toast crisping and turning brown