In some plants,the female gamete develops into an embryo without fertilization. This phenomenon is known as:

Seeds without fertilisation are obtained from

Polyembryony is commonly observed in which of the following species?

Haploid apogamy refers to ..... .

Despite a high level of heterozygosity,the progeny derived from the seed of a cross-pollinated plant was found to be completely uniform. One reason for this may be the phenomenon of:

Which of the following processes is helpful in hybrid seed production?