Question
How is micropropagation performed? Which phenomena occur during telophase stage of mitosis in an animal cell?
How is micropropagation performed? Which phenomena occur during telophase stage of mitosis in an animal cell? [3 + 2]
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Chapter: 02 (a) Cell Division and Cell Cycle
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Question
Establish the interrelationship between gene, DNA and chromosome. What are the advantages of vegetative propagation?
Establish the interrelationship between gene, DNA and chromosome. What are the advantages of vegetative propagation? [3 + 2]
Question
Describe the following features occurring during anaphase stage of animal cell division: (a) Division of centromere, (b) Formation of daughter chromosome, (c) Types of spindle fibre, (d) Movement of daughter chromosome towards pole, (e) Formation of stern body.
Describe the following features occurring during anaphase stage of animal cell division: (a) Division of centromere, (b) Formation of daughter chromosome, (c)…
Question
Draw a scientific diagram of anaphase stage of mitosis of animal cell and label the following parts: Daughter chromosome, Continuous fibre, Centriole, Chromosomal fibre
Draw a scientific diagram of anaphase stage of mitosis of animal cell and label the following parts: Daughter chromosome, Continuous fibre, Centriole,…
Question
What changes can occur if the amount of heterochromatin increases in chromosome compared to euchromatin?
What changes can occur if the amount of heterochromatin increases in chromosome compared to euchromatin?
Question
Show the list of substances synthesised during G₁ and G₂ phases of cell cycle with the help of table.
Show the list of substances synthesised during G₁ and G₂ phases of cell cycle with the help of table.
Question
Matching (any five) 1×5=5 Column–A 2.13. ADH 2.14. Amitosis 2.15. Thalassaemia 2.16. Analogous organ 2.17. Increase in human population 2.18. Ontholiphonus flower of Paddy
Column–A Column–B 2.13. ADH (a) Decline in Wetland 2.14. Amitosis (b) Convergent Evolution 2.15. Thalassaemia (c) Palash (Flame of the forest) 2.16.…
Question
Daughter chromosomes move towards respective poles during anaphase stage of mitosis of animal cell
Daughter chromosomes move towards respective poles during anaphase stage of mitosis of animal cell.
Question
____ having special polarity protects the two ends of chromosome from erosion
____ having special polarity protects the two ends of chromosome from erosion.
Question
In DNA, which of the following base pairs is correct? (a) A—T (b) A—T (c) G = C (d) G—C
In DNA, which of the following base pairs is correct? (a) A—T (b) A—T (c) G = C (d) G—C