In barley, the normal development of chlorophyll and seed coatiness are dominant features, albinism and nakedness are recessive.

In barley, the normal development of chlorophyll and seed coatiness are dominant features, albinism and nakedness are recessive. Heterozygous green naked plant crossed with green plant with scarious seeds, heterozygous for the second trait. Determine the genotypes and phenotypes of F1 plants.

Let us designate the dominant and recessive alleles of genes: A – chlorophyll development, a – albinism, B – seed coatiness, b – nakedness. F1 genotypes – AABB, AABb, AaBb, Aabb in a ratio of 1: 1: 1: 1; phenotypes – green plants with scarious seeds and green hulless in a ratio of 3: 1.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.