AP BIOLOGY

Detailed explanation-1: -Grafting is the act of joining two plants together. The upper part of the graft (the scion) becomes the top of the plant, the lower portion (the understock) becomes the root system or part of the trunk. Although grafting usually refers to joining only two plants, it may be a combination of several.

Detailed explanation-2: -In grafting, the plant part which is selected for its roots is called the scion. 2. In grafting, the plant part which is selected for its stems, leaves, flowers, or fruits is called the stock.

Detailed explanation-3: -Grafting or graftage is a horticultural technique whereby tissues of plants are joined so as to continue their growth together. The upper part of the combined plant is called the scion (/ˈsaɪən/) while the lower part is called the rootstock.

Detailed explanation-4: -The correct option is A. scion. During grafting, the portion of plant that is grafted is called scion.

Detailed explanation-5: -Rootstock is the base and root portion of a grafted plant. It’s grafted onto the scion, which is the flowering or fruiting part of the plant, in order to create a new plant with superior qualities.