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#Question id: 2972


Match the following attachment (Column I) with definition(Column II).

Column I

Column II

A. Monotelic Attachment

I. When sister kinetochores attach to microtubules emanating from opposite spindle poles, they are stably attached.

B. Syntelic Attachment

II. When one kinetochore attaches to microtubules emanating from two opposite spindle poles.

C. Amphitelic Attachment

III. When both sister kinetochores attach to microtubules emanating from the same spindle pole.

D. Merotelic Attachment

IV. When only one of the two sister kinetochores attaches to microtubules.

Which of the following is correct?

#I Life Science/ Life Sciences Group – I-V
  1. A-IV, B-III, C-II, D-I

  2. A-IV, B-III, C-I, D-II

  3. A-I, B-II, C-III, D-IV

  4. A-II, B-I, C-IV, D-III

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Mechanical barriers provide a first line of defence against insect pests and pathogens, these mechanical barriers developed by plants;

                   COLUMN A  

                     COLUMN B

A. Thorns

i) It can be found on the stem and petioles of roses and are formed by the epidermis

B. Spines

ii) Found on a lemon tree (Citrus sp.) are modified branches, as can be seen by their position in the axil of a leaf

C. Prickles

iii) Found on shoot and leaves of tomato (Solanum lycopersicum) are derived from epidermal cells

D. Trichomes

iv) which are characteristic of cacti (Opuntia spp.) in the New World, are modified leaves

Match correctly following combination of barrier developed by plants ;