Match List-I with List-II:
| List-I | List-II | ||
| a. | Cedrus | (i) | Pteridophyte |
| b. | Adiantum | (ii) | Gymnosperm |
| c. | Sphagnum | (iii) | Liverwort |
| d. | Marchantia | (iv) | Moss |
Choose the correct answer from the options given below:
| a | b | c | d | |
| 1. | (ii) | (iii) | (i) | (iv) |
| 2. | (iii) | (i) | (iv) | (ii) |
| 3. | (ii) | (i) | (iv) | (iii) |
| 4. | (iii) | (iv) | (ii) | (i) |
The products of light reaction in photosynthesis are:
| 1. | ATP, NADPH and \(\text{O}_2\) |
| 2. | ATP, NADPH, \(\text{O}_2\) and \(\text{H}_2 \text{O}\) |
| 3. | ATP, NADPH and \(\text{H}_2 \text{O}\) |
| 4. | ATP, NADPH and \(\text{CO}_2\) |
In prophase I of Meiosis, chromosomes start pairing together and synapsis takes place. This process occurs during which of the following stage?
| 1. | Pachytene | 2. | Diplotene |
| 3. | Leptotene | 4. | Zygotene |
Identify the correct statements related to the androecium in the flower.
| (a) | The sterile stamens are called staminodes |
| (b) | When stamens are attached to petals they are called epipetalous |
| (c) | Monadelphy is seen in China-rose |
| (d) | Polyadelphy is seen in Pea |
| (e) | Variation in the length of anther filaments is seen in Mustard |
Choose the correct answer from the options given below:
1. (a), (c), (d) and (e) only
2. (a) , (b), (c) and (e) only
3. (a) , (b) and (c) only
4. (b) , (c) and (d) only
Which of the following statements above facilitated diffusion is incorrect?
| 1. | Special proteins of the membrane help in this process |
| 2. | Porins are involved in this process |
| 3. | Movement of the molecule occurs against the concentration gradient |
| 4. | ATP is not required for this process |
Phloem sap in the plants mainly consists of :
1. fructose and water
2. fructose and sucrose
3. glucose and water
4. sucrose and water
Identify the correct set of statements with regard to the properties of humus.
| (a) | Highly resistant to microbial action |
| (b) | Dark-colored amorphous substance |
| (c) | End product of detritus food chain |
| (d) | Reservoir of nutrients |
| (e) | Undergoes decomposition very fast |
Choose the correct answer from the options given below:
1. (a), (b), and (d) only
2. (a),(b) and (e) only
3. (a) and (b) only
4. (b), (c), and (a)
Select the correct statements with respect to pleiotropism:
| (a) | A gene is said to be pleiotropic if it affects more than one trait |
| (b) | Phenylketonuria is an example of pleiotropy |
| (c) | A condition where one gene has several alleles is referred to as pleiotropism |
| (d) | A trait is said to be pleiotropic if several genes control it |
Choose the correct answer from the options given below:
| 1. | (a) and (b) only | 2. | (a) and (d) only |
| 3. | (a), (b) and (c) only | 4. | (b), (c) and (d) only |
The living differentiated cells, that lost the capacity to divide anymore, can regain the capacity of division under certain conditions. This phenomenon is termed as:
| 1. | Redifferentiation | 2. | Maturation |
| 3. | Differentiation | 4. | Dedifferentiation |
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R)
| Assertion (A): | A father will never pass the gene for haemophilia to his sons |
| Reason (R): | Haemophilia is sex-linked (X-linked recessive trait). |
In the light of the above statements, choose the correct answer from the options given below :
| 1. | (A) is True but (R) is False. |
| 2. | (A) is False but (R) is True. |
| 3. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
| 4. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
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