Download App

Cell Cycle and Cell Division — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYCell Cycle and Cell Division3 Marks
Question
Write brief note on the following
Synaptonemal complex.
✓

Answer

Centromere of all the chromosomes form a plate called metaphasic plate or equatorial plate. This plate is formed during metaphase stage of mitosis and meiosis. On this plate the small chromosomes come to lie towards the interior while the larger one are arranged towards the periphery. The centromeres of all the chromosomes lie on the equator while the limbs are placed variously according to their size and spatial arrangement.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "3 Marks Question" from Cell Cycle and Cell Division→Cell Cycle and Cell Division — all question types→BIOLOGY STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Explain the following terms:
  1. Actinomorphic.
  2. Gamosepalous.
  3. Syncarpous.
→
Answer the following with reference to the anatomy of dicot root:
  1. Where is pericycle located?
  2. How are xylem vessels arranged?
  3. What do you call such an arrangement?
  4. Which type of cells constitute the cortex?
→
Study the curve given below and answer the questions asked:

 

  1. What is this curve known as?
  2. What does 'C' depict in the curve?
  3. The effect of which factors can be studied with the help of this curve?
→
Explain the process of formation of vascular cambium.
→
Write a brief account of mosses.
→
Name the two important enzymes of C3 and C4 pathways, respectively? What important role do they play in fixing CO2?
→
Arun visited his village in vacations to see his grandfather. He went to the field one day along with his grandfather where he observed the poor growth of the sugarcane. He discussed the issue and the reason behind this with his grandfather. Sugarcane is the main crop in their village. His grandfather asked him to suggest some methods in order to increase the yield of sugarcane, in a healthy way. Being a biology student Arun told his grandfather to use gibberellins (GA3) spray on the sugarcane crop.
  1. What are gibberellins?
  2. What are other physiological responses influenced by gibberellins? Give arty two.
  3. What message is conveyed by grandfather and Arun's character?
→
Fill in the following blanks in the table by giving correct information.

→
  1. Name the end products of fermentation.
  2. Write the role of oxygen in the electron transport system.
  3. What is respiratory quotient? What is the RQ for fat?
→
Differentiate between Rough Endoplasmic Reticulum (RER) and Smooth Endoplasmic Reticulum (SER).
→