MCQ
Puff ball is a
- ✓Fungus
- BAlga
- CMoss
- DPine cone
They have ball-shaped basidiocarps which send out puffs of spores.
Young puff balls are edible.
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| Chromosomes | Position of centromere |
| $(A)$ Metacentric | $(1)$ At the tip |
| $(B)$ Submetacentric | $(2)$ Almost near the tip |
| $(C)$ Acrocentric | $(3)$ At the middle |
| $(D)$ Telocentric | $(4)$ Slightly away from the middle |
$(a)$ In roots, xylem and phloem in a vascular bundle are arranged in an alternate manner along the different radii.
$(b)$ Conjoint closed vascular bundles do not possess cambium
$(c)$ In open vascular bundles, cambium is present in between xylem and phloem
$(d)$ The vascular bundles of dicotyledonous stem possess endarch protoxylem
$(e)$ In monocotyledonous root, usually there are more than six xylem bundles present.
Choose the correct answer from the options given below:
$X - Y - Z$
