Question
Identify A and B in the given diagram.
✓
Answer
A : Nucleosome
B : Linker DNA
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| …………….…. | …………………….. | Secondary consumer | …………………….. |
| ……………..… | Herbivore, Heterotrophs | …………………….. | ……………………. |
| ……………..… | Autotrophs | ……………………. | Phytoplankton, grass, trees |
Nictitating membrane, Seymouria, Lung fish, Flipper of whale and wing of bird, Wing of insect and wing of bird, wisdom tooth, Eye of octopus, an eye of mammal, vertebrate heart and brain.
Column I | Column II |
(1) Homologous organs | ————- |
(2) Analogous organs | ————- |
(3) Vestigial organs | ————- |
(4) Connecting links | ————- |
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(i) Pneumonia (ii) Asbestosis (iii) Emphysema (iv) Laryngitis (v) Chronic bronchitis (vi) Silicosis
(i) Pneumonia (ii) Asbestosis (iii) Emphysema (iv) Laryngitis (v) Chronic bronchitis (vi) Silicosis
| Column A | Column B |
| (1) Occupational disorders | ———— |
| (2) Disorders due to smoking and air pollution | ———— |
| (3) Disorders due to viruses and bacteria | ———— |
Complete the following table by placing the categories and the given signs + : Benefited ; – : Inhibited ; 0 : Not affected
| Interactions | Species | |
| A | B | |
| 1. Neutralism – ………………….. | ||
| 2. Negative interactions ………………………… | ||
| 3. Positive interactions ……………………. | ||
| 4. Both positive and negative interactions ………………………….. | ||
| Organization | Expand |
| OECD | —————— |
| GEAC | —————— |
| USDA | —————— |
| USPTO | —————— |
| CSIR | —————– |
Complete the table given below by putting a tick (✓) in the boxes where applicable.
| Action | Reflex | Voluntary |
| 1. Touching a hot object | ———- | ———– |
| 2. Releasing saliva on smelling food | ———– | ———— |
| 3. Applying a car’s brakes in an emergency | ———— | ————– |
| 4. Blinking of eyes when a small insect touches the eye | ———– | ———— |
a. Identify A. Which enzyme joined them?
b. Identify B. What is its function ?
b. Identify B. What is its function ?
Sketch and label four types of chromosomal aberrations
Classify the following:
Lung cancer, Pituitary, Spleen, Skin cancer, Cancer of adipose tissue, lymph nodes, Adrenal, Bone tumour.
Lung cancer, Pituitary, Spleen, Skin cancer, Cancer of adipose tissue, lymph nodes, Adrenal, Bone tumour.
| Column (A Type of cancer) | Column B (Organs affected) |
| (1) Carcinoma | ————– |
| (2) Sarcoma | ————– |
| (3) Lymphoma | ————– |
| (4) Adenocarcinoma | ————– |
Table based guestions:
