MCQ on Embryo
MCQ Questions on Embryo:
1. In a type of apomixis known as adventive embryony, embryos develop directly from the :
(1) Nucellus or integuments
(2) Synergids or antipodals in an embryosac
(3) Accessory embryosacs in the ovule
(4) Zygote
Answer: 1
2. The function of the suspensor is
(1) To provide water
(2) To provide oxygen
(3) To push the embryo towards endosperm to provide more food
(4) To suck food
Answer: 3
3. Functional megaspore in an angiosperm develops into?
(1) Endosperm
(2) Embryo sac
(3) Embryo
(4) Ovule
Answer: 2
4. Synergids help in
(1) Pollen entry into embryosac
(2) Endosperm formation
(3) Embryosac nutrition
(4) Both 1 & 3
Answer: 4
5. A typical angiosperm embryosac at maturity is:-
(1) 7 celled – 8 nucleated
(2) 9 celled – 7 nucleated
(3) 3 celled – 3 nucleated
(4) 2 celled – 2 nucleated
Answer: 1
6. When an embryo develops from a haploid cell of embryosac, other than an egg cell the process is known as
(1) Apogamy
(2) Apospory
(3) Adventive embryony
(4) Diplo spory
Answer: 1
7. Free nuclear division in an angiosperm takes place during
(1) Pollen formation
(2) Endosperm formation
(3) Embryo formation
(4) Flower Formation
Answer: 2
8. The arrangement of the nuclei in normal embryosac in the dicot plants is
(1) 2 + 4 + 2
(2) 3 + 2 + 3
(3) 2 + 3 + 3
(4) 3 + 3 + 2
Answer: 2