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Q1 Mention the information source of making proteins in the cell. What is the basic event in reproduction?
Q2 Explain giving one example of each, the unisexual and the bisexual flowers.
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Answers
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Here is ur answer..!!
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Q1 Ans : Cellular DNA is the information source for making proteins in the cell.
→ The basic event in reproduction is the creation of a DNA copy. Cells use chemical reactions to build copies of their DNA. This creates two copies of the DNA in a reproducing cell, and they need to be separated from each other. For this it is necessary to create an additional cellular structure. Then, DNA copies separately move to these two cells.
Q2. ANS : → Unisexual flowers : Contains either stamens or carpels but not both.
Eg : Papaya, watermelon.
Bisexual flowers : Contains both stamens and carpels.
Eg : Hibiscus , Mustard.
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ᴛʜᴇ ᴅɴᴀ ɪɴ ᴛʜᴇ ɴᴜᴄʟᴇᴜs ᴏғ ᴀ ᴄᴇʟʟ ɪs ᴛʜᴇ ɪɴғᴏʀᴍᴀᴛɪᴏɴ sᴏᴜʀᴄᴇ ғᴏʀ ᴍᴀᴋɪɴɢ ᴘʀᴏᴛᴇɪɴs. ɪғ ᴛʜᴇ ɪɴғᴏʀᴍᴀᴛɪᴏɴ ɪs ᴄʜᴀɴɢᴇᴅ, ᴅɪғғᴇʀᴇɴᴛ ᴘʀᴏᴛᴇɪɴs ᴡɪʟʟ ʙᴇ ᴍᴀᴅᴇ. ᴛʜᴇ ʙᴀsɪᴄ ᴇᴠᴇɴᴛ ɪɴ ʀᴇᴘʀᴏᴅᴜᴄᴛɪᴏɴ ɪs ᴛʜᴇ ᴄʀᴇᴀᴛɪᴏɴ ᴏғ ᴀ ᴅɴᴀ ᴄᴏᴘʏ. ᴄᴇʟʟs ᴜsᴇ ᴄʜᴇᴍɪᴄᴀʟ ʀᴇᴀᴄᴛɪᴏɴs ᴛᴏ ʙᴜɪʟᴅ ᴄᴏᴘɪᴇs ᴏғ ᴛʜᴇɪʀ ᴅɴᴀ. ᴛʜɪs ᴄʀᴇᴀᴛᴇs ᴛᴡᴏ ᴄᴏᴘɪᴇs ᴏғ ᴛʜᴇ ᴅɴᴀ ɪɴ ᴀ ʀᴇᴘʀᴏᴅᴜᴄɪɴɢ ᴄᴇʟʟ ᴀɴᴅ ᴛʜᴇʏ ɴᴇᴇᴅ ᴛᴏ ɢᴇᴛ sᴇᴘᴀʀᴀᴛᴇᴅ ғʀᴏᴍ ᴇᴀᴄʜ ᴏᴛʜᴇʀ. ᴅɴᴀ ᴄᴏᴘʏɪɴɢ
ɪs ᴀᴄᴄᴏᴍᴘᴀɴɪᴇᴅ ʙʏ ᴛʜᴇ ᴄʀᴇᴀᴛɪᴏɴ ᴏғ ᴀɴ ᴀᴅᴅɪᴛɪᴏɴᴀʟ ᴄᴇʟʟᴜʟᴀʀ ᴀᴘᴘᴀʀᴀᴛᴜs, ᴀɴᴅ ᴛʜᴇɴ ᴛʜᴇ ᴅɴᴀ ᴄᴏᴘɪᴇs sᴇᴘᴀʀᴀᴛᴇ, ᴇᴀᴄʜ ᴡɪᴛʜ ɪᴛs ᴏᴡɴ ᴄᴇʟʟᴜʟᴀʀ ᴀᴘᴘᴀʀᴀᴛᴜs.
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