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Match the columns. {:(,"Column -I","Co...

Match the columns.
`{:(,"Column -I","Column -I"),((a),"Leptotene",(i)"Chiasmata"),((b),"Zygotene",(ii)"Chromosomes visible"),((c),"Pachytene",(iii) "The pairing of homologous chromosome "),((d),"Diplotene",(iv)"Clear appearance of tetrads"):}`

A

(a) - (i),(b)-(ii),(c) -(iv),(d) -(iii)

B

(a) - (ii),(b)-(iii),(c) -(iv),(d) -(i)

C

(a) - (ii),(b)-(iii),(c) -(i),(d) -(iv)

D

(a) - (iv),(b)-(iii),(c) -(ii),(d) -(i)

Text Solution

AI Generated Solution

The correct Answer is:
To solve the matching question, we need to understand the stages of prophase I of meiosis and the corresponding visible changes associated with each stage. Here’s a step-by-step breakdown of the solution. ### Step-by-Step Solution: 1. **Identify the stages of prophase I:** - The stages given in Column I are: - (a) Leptotene - (b) Zygotene - (c) Pachytene - (d) Diplotene 2. **Identify the visible changes in Column II:** - The visible changes given in Column II are: - (i) Chiasmata - (ii) Chromosomes visible - (iii) The pairing of homologous chromosomes - (iv) Clear appearance of tetrads 3. **Match Leptotene (a):** - During the leptotene stage, chromosomes start to condense and become visible. - **Match:** (a) Leptotene → (ii) Chromosomes visible 4. **Match Zygotene (b):** - In the zygotene stage, homologous chromosomes begin to pair up, a process known as synapsis. - **Match:** (b) Zygotene → (iii) The pairing of homologous chromosomes 5. **Match Pachytene (c):** - The pachytene stage is characterized by the formation of tetrads (four chromatids) and the clear appearance of these structures. - **Match:** (c) Pachytene → (iv) Clear appearance of tetrads 6. **Match Diplotene (d):** - In the diplotene stage, chiasmata (the points where homologous chromosomes exchange genetic material) become visible. - **Match:** (d) Diplotene → (i) Chiasmata ### Final Matches: - (a) Leptotene → (ii) Chromosomes visible - (b) Zygotene → (iii) The pairing of homologous chromosomes - (c) Pachytene → (iv) Clear appearance of tetrads - (d) Diplotene → (i) Chiasmata ### Summary of Matches: - A → ii - B → iii - C → iv - D → i
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