The offspring which will result from a cross between heterozygous and homozygous dominant plants will be
Answer Details
The offspring which will result from a cross between heterozygous and homozygous dominant plants will be 50% heterozygous and 50% homozygous dominant.
When we talk about genetic traits, an individual can have two copies of the same gene or two different versions (alleles) of the gene. In this case, the homozygous dominant parent has two copies of the dominant allele (AA), while the heterozygous parent has one copy of the dominant allele and one copy of the recessive allele (Aa).
During reproduction, each parent contributes one copy of their alleles to the offspring. Therefore, the possible combinations of alleles that can be inherited from these parents are AA, Aa, and Aa.
If we look at the ratio of genotypes (genetic makeup) among the offspring, we can see that 50% will inherit one copy of the dominant allele from the heterozygous parent (Aa), while the other 50% will inherit the dominant allele from both parents (AA). Therefore, all of the offspring will have the dominant phenotype (observable traits), but only half of them will be heterozygous.
This pattern of inheritance is known as Mendelian inheritance and follows the principles established by Gregor Mendel in his studies of pea plants in the 19th century.