AP BIOLOGY

PLANTS

PLANT REPRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of these statements is true of grafting?
A
Grafting allows horticulturalists combine pollen grains and egg cells together from two species to make a genetic hybrid.
B
Grafting can be used to make a plant that produces more than one species of fruit.
C
Grafting is a way to produce many plants all at once that are all identical to each other.
D
Grafting is the same as sexual reproduction, except that it takes place between two different species.
Explanation: 

Detailed explanation-1: -Grafting and budding are horticultural techniques used to join parts from two or more plants so that they appear to grow as a single plant. In grafting, the upper part (scion) of one plant grows on the root system (rootstock) of another plant.

Detailed explanation-2: -Advantages of Grafting Advantages of using grafted vegetables include better resistance to pathogens, drought and other environmental stresses, more vigorous growth, and higher yield.

Detailed explanation-3: -Once a tree has been grafted, the fruit it produces will be identical to that of the original tree. You can even use the branches of a grafted tree to graft even more trees!

Detailed explanation-4: -Grafting is used for two principal reasons: most fruit trees don’t come true to seed (seeds from a McIntosh apple won’t grow into McIntosh trees) and cuttings don’t root easily. The technique of grafting is used to join a piece of vegetative wood (the scion) from a tree we wish to propagate to a rootstock.

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