CAIE IGCSE Biology 16.1.1 Defining Asexual Reproduction

Practise describing asexual reproduction as one parent producing genetically identical offspring without gamete fusion.

Exam points

state that asexual reproduction involves one parent and no fusion of gamete nuclei
state that the offspring are genetically identical to one another and the parent
use life-cycle evidence to exclude meiosis, gamete formation and fertilisation

[Maximum number: 3]

Fig. 2.1 shows a dwarf sunflower and a tall sunflower, Helianthus annuus. The height of the dwarf sunflower is 0.45 m and the height of the tall sunflower is 4.5 m .

not to scale

Dwarf plants like the one in Fig. 2.1 have mutant alleles.

Fig. 2.3 shows how several strawberry plants can be formed from one parent plant.

Fig. 2.3

Explain the type of reproduction that produces plants by the method shown in Fig. 2.3.

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16.1.1—Asexual reproduction as a process question 1