MCQ
Identify the $X$ and $Y$ from given diagram


- ✓$X$ -chalazal, $Y$ -Micropylar
- B$X$ -chalazal, $Y$ -egg
- C$X$ -Micropylar, $Y$ -synergids
- D$X$ -Micropylar, $Y$ -Antipodals

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$(i)$ $RNA$ can directly code for the synthesis of proteins
$(ii)$ It is very common process to synthesis $DNA$ from $RNA$
$(iii)$ $RNA$ is used as genetic material only in human
$(iv)$ One polynucleotide chain is present in $RNA$
