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level: AIIMS and disha questions

Questions and Answers List

Question	Answer
asexual reproduction is also called as	self fertilization
which part of embryo comes out first during seed germination	epicotyl
xenia refers to	effect of pollen on endosperm
double fertilization involves	fertilization of egg and the central cell by two sperms brought by the same pollen tube
it is an example of aneuploidy. in it a chromosome of a homologous pair is missing. eg. turner's syndrome	monosomic
an extra chromosome is present in some or all body parts of an organism. eg. down syndrome	trisomy
genetic condition which lacks both the normal pair of chromosome.	nullisomic
apomixis is	formation of seeds with syngamy but no meiosis
the plant part which consists of two generations one within the other, is	embryo
chasmogamy refers to the condition where	flowers are open
geitonogamy involves	fertilization of a flower by the pollen from another flower of the same plant
sporopollenin can withstand	high temperature as well as strong acids and alkalis
megaspore mother cell divides by meiosis and forms	a row of four haploid megaspores
a group of plants which set seeds without exposing heir sex organs.	cleistogamous flowers