In pea plants, the tall-stem allele and the short-stem allele are different forms of the same C. Gene. Therefore, C. Gene is correct .
In pea plants, the tall-stem allele and the short-stem allele are different forms of the same gene.
Genes are segments of DNA that encode information for the synthesis of proteins, which are essential for the structure and function of an organism.
Each gene exists in alternative forms called alleles. In the case of pea plants, the gene responsible for stem length has two alleles: one for tall stems and another for short stems.
A. Alleles: Alleles are different versions of a gene that occupy the same position (locus) on homologous chromosomes.
In this scenario, the tall-stem allele and the short-stem allele represent the two different forms of the gene controlling stem length.
B. Dominant: Dominant and recessive refer to the relationship between alleles of a gene.
In this case, one allele (e.g., tall-stem) may be dominant over the other (e.g., short-stem), determining the phenotype expressed in the organism.
C. Gene: The correct answer is C. The tall-stem allele and short-stem allele are different forms of the same gene responsible for stem length in pea plants.
D. Recessive: Recessive alleles are expressed as the phenotype only when present in a homozygous state (two copies).
If the short-stem allele is recessive to the tall-stem allele, it will be expressed only in plants with two copies of the short-stem allele.
The variations in stem length in pea plants are determined by different forms (alleles) of the gene controlling stem length.
Question
In pea plants, the tall-stem allele and the short-stem allele are different forms of the same ________.
A. Alleles
B. Dominant
C. Gene
D. Recessive