921. Which non-flowering, spore bearing plants have roots?

1. Gymnosperms
2. Angiosperms
3. Ferns
4. None of these

Option “3” is correct
Ferns are non-flowering, deciduous or evergreen perennial plants that grow in various sizes having roots. The fern’s life cycle continues when spores germinate in sunlit, moist environments.
922. Which cell disorder in our body is responsible for colour blindness?

1. WBC
2. Cone cell
3. Rod Cell
4. Neuron

Option “2” is correct
The retina of the eye has two types of light sensitive cells called rods and cones, both are found in the retina. Rods work in low light conditions to help night vision, but cones work in daylight and are responsible for colour discrimination.
923. Blood is red in colour due to the presence of __________ .

1. Cytochrome
2. Chlorophyll
3. Hemocyanin
4. Haemoglobin

Option “4” is correct
Blood is red in colour due to the presence of Haemoglobin.
924. The fat digesting enzyme Lipase is secreted by which of the following-

1. Kidneys
2. Stomach.
3. Large Intestine
4. Liver

Option “2” is correct
Lipase is an enzyme in the body uses to break down fats in food so they can be absorbed in the intestines. Lipase is produced in the pancreas, mouth, and stomach.
925. Which Virus causes Chicken Pox?

1. Rubella Virus
2. Varicella zoster virus
3. Rabies
4. Variola Virus

Option “2” is correct
Chickenpox, also known as varicella, is a highly contagious disease caused by the initial infection with varicella zoster virus (VZV).
926. The process of pollination by birds is also known as –

1. Hydrophily
2. Entomophily
3. Embryophily
4. Ornithophily

Option “4” is correct
Ornithophily or bird pollination is the pollination of flowering plants by birds.
927. The branch of study dealing withhold age and ageing is called-

1. Oncology
2. Gerontology
3. Teratology
4. Ornithology

Option “2” is correct
Gerontology is the study of the social, psychological, cognitive and biological aspects of aging. Oncology is the branch of medical science that deals in treating people suffering from cancer. Teratology is the study of abnormalities of physiological development. Ornithology is a branch of zoology that is related to the study of birds.
928. Who explained first the evolution of life?

1. Newton
2. Einstein
3. Charles Darwin
4. Lamarck

Option “4” is correct
French biologist Lamarck is best known for his “Theory of Inheritance of Acquired Characters”, first presented in 1801. He was the first person to explain the theory of evolution to the public. In 1809, this theory was published in his book ‘Philosphie Zoologique’.
929. Sickle-cell anemia is a disease caused due to the abnormality in-

1. White blood cells
2. Red blood cells
3. Thrombocytes
4. Blood plasma composition

Option “2” is correct
Sickle cell anemia is an inherited blood disorder that causes chronic anemia, periodic episodes of pain, and other complications. In sickle cell anemia, the red blood cells become rigid and shaped like crescents, or sickles, rather than being flexible and round. This change in shape prevents red blood cells from getting into small blood vessels. As a result, the tissues do not get enough oxygen. Lack of oxygen can cause pain and damage in the arms, legs, and organs (e.g., spleen, kidney, brain).
930. Which one of the following vitamins is responsible for blood clotting?

1. C
2. K
3. E
4. D

Option “2” is correct
Blood is a fluid connective tissue which coagulates in few minutes after ejecting from the body which called as blood clots. In process of blood clotting Vitamin K are involved.
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48 thoughts on “Biology”

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