A plant has leaves with both green and white areas. One of its leaves is partly covered with aluminium foil which blocks light.
The plant is then placed under a lamp for 24 hours. After this time, discs are cut from the areas of the leaf shown, and tested with iodine solution.
Which leaf discs will give a blue-black colour when tested with iodine solution?
1 )
W and X
2 )
X only
3 )
Y and Z
Y only
تحلیل ویدئویی تست
منتظریم اولین نفر تحلیلش کنه!
