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1.Sexual Reproduction in Flowering Plants
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If stem has $2 n=10$ number of chromosomes than find out
$A$ - number of chromosomes in endosperm
$B$ - number of chromosomes in egg cell
$C$ - number of chromosomes in polar nuclei
A
$15,15,20$
B
$10,15,20$
C
$15,5,10$
D
$10,5,15$
Solution
Endosperm $: 3 n=5 \times 3=15 \;chromosome\;Egg \;cell < 1 n=1 \times 5\;= \;5$ $chromosome\;Polar \;cell \;i \;2 n=2 \times 5=10 chromosome$
Standard 12
Biology
Similar Questions
Arrange correct pair
| Column $-I$ | Column $-II$ |
| $(1)$ Pollination by water | $(a)$ Grass |
| $(2)$ Pollination by wind | $(b)$ free-nuclear endosperm |
| $(3)$ coconut water | $(c)$ Guava |
| $(4)$ Fleshy fruit | $(d)$ Hydrilla |
| $(e)$ cellular endosperm |
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