22 A 22 B 23 A 23 B 24 25 A 25 B 25 C 26 27 A 27 B 27 27 28 A 28 B 29 A 29 B 30 A 30 B 30 C 31 A 31 B 31 C 32 A 32 B 33

Lakhmir Singh & Manjit Kaur- Biology

Very Short Answer Type Questions-Pg-141

1 2 3 4 5 6 7 A 7 B 8 9 10 11 12 13 14 15 16 17 18 19 20 21

Short Answer Type Questions-Pg-141

22 A 22 B 23 A 23 B 24 25 A 25 B 25 C 26 27 A 27 B 27 27 28 A 28 B 29 A 29 B 30 A 30 B 30 C 31 A 31 B 31 C 32 A 32 B 33

Long Answer Type Questions-Pg-142

34 A 34 B 34 C 34 D 34 E 35 A 35 B 35 C 35 D 35 E 36 A 36 B 36 C 36 D 37 A 37 B 37 C 37 D 37 E 37 F 38 A 38 B 38 C 38 D 38 E 39 A 39 B 39 C 39 D

Multiple Choice Questions (MCQs)-Pg-143

40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79

Questions Based on High Order Thinking Skills (HOTS)-Pg-145

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Very Short Answer Type Questions-Pg-168

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 A 17 B 18 A 18 B 19 20 A 20 B 21 A 21 B 22 23 24 A 24 B 25

Short Answer Type Questions-Pg-169

26 A 26 B 26 C 26 D 27 A 27 B 27 C 28 A 28 B 28 C 29 A 29 B 29 C 30 A 30 B 30 C 31 A 31 B 32 33 34 A 34 B 35 A 35 B 36 A 36 B 37 A 37 B 37 C 38 39 A 39 B 39 C 39 D 40 A 40 B 41 A 41 B 41 C 42 A 42 B 43 A 43 B 43 C 44 A 44 B 45 46 47 A 47 B 48 A 48 B 49 50 51 52 53 A 53 B 53 C

Long Answer Type Questions-Pg-170

54 A 54 B 55 A 55 B 55 C 55 D 55 E 56 A 56 B 56 C 56 D 57 A 57 B 57 C 57 D 58 A 58 B 58 C 58 D 58 E 58 F

Multiple Choice Questions (MCQs)-Pg-171

59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94

Questions Based on High Order Thinking Skills (HOTS)-Pg-173

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Q. 28 B

What is a clone ?

Class 10th Lakhmir Singh & Manjit Kaur- Biology 3. How Do Organisms Reproduce

Answer :

The organisms which are produced asexually are genetically identical to the parent and are called clones. The basic event in the reproduction is the creation of DNA copy. The replication of DNA occurs by certain biochemical reactions which synthesize more of genetic material. When the DNA already present in the nucleus of the parent cell is replicated by making more DNA at the time of asexual reproduction then slight variations come in the two copies formed. Due to this the two DNA molecules formed will be similar but not identical.

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