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In peas, purple flowers are dominant to white and tall plants are dominant to short. A white and short plant is crossed with a plant that is heterozygous for both traits.

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to understand what the result of these crosses would be like, we need to know what is gene

Gene

The gene is a strand of a DNA molecule (deoxyribonucleic acid), which carries the characteristics that are genetically inherited. They are composed of a sequence of DNA and RNA (ribonucleic acid), responsible for the production and synthesis of proteins in the cell. The gene's greatest attribution, therefore, is to be a store and transmitter of information.

Genes can be classified into:

  • Dominant genes: assume the specific characteristic in the offspring;
  • Recessive genes: manifests itself in the absence of the dominant gene;
  • Structural genes: are those that contain the information that will determine the structure of living beings;
  • Operator gene: acts on the functioning of other genes;
  • Regulatory gene: responsible for controlling the synthesis and transcription of other genes.

in genetics, are individuals who have pairs of genes that are identical or different alleles. This means that while the has two identical genes alleles, with the beings the opposite happens, since they have two different genes alleles.

with this information we can say that a white and short plant, when crossed with a plant  for both traits, has 60% of this plant being  with expression of the dominant genes and 40% of being  with expression of the recessive gene.

To make it easier to understand, I created an image containing the gene information and whether they are .

Learn more about gene in https://brainly.com/question/787658?referrer=searchResults

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