Egg apparatus of angiosperms consist of

MCQ

A
One synergid and two egg cells
✓
Two synergids and one egg cell
C
One central cell, two synergids and three antipodal cells
D
One egg cell, two polar nuclei and three antipodal cells

✓

Answer

Correct option: B.

Two synergids and one egg cell

b
In embryo sac of angiosperm, egg apparatus occurs towards micropylar pole and generally organises by two synergids and one egg cell. Egg cell has a large vacuole at its upper and a prominent nucleus near its lower end. Synergids show a filiform apparatus attached to their upper wall. It is known to attract and guide the pollen tube. Each of the synergids has a vacuole at its lower end and the nucleus at its upper end.

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Lacking of $B$-cells and $T$-cells is known as

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Match List$-I$ with List$- II.$

List$-I$	List$-II$
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$(b)$ $IUDs$	$(ii)$ Removal of Vas deferens
$(c)$ Vasectomy	$(iii)$ Phagocytosis of sperms within the Uterus
$(d)$ Tubectomy	$(iv)$ Removal of fallopian tube