Biology - Online Test
Q1. If we say, India has about 50,000 type of rice and 1000 types of varieties of mango what level of diversity it indicates:
Answer : Option B
Explaination / Solution:
India has about 50,000 type of rice and 1000 types of varieties of mango. This high level of diversity indicates very high genetic diversity and one of the largest in the world.
Q2. Air bladder is present in
Answer : Option A
Explaination / Solution:
Air bladder is present in Actinopterygii. It is also known as ray finned fish due to presence of fin rays.
Q3. When there is no distinction of sepals and petals, the non-essential floral organs are collectively called
Answer : Option C
Explaination / Solution:
In some flowers, there is no distinction of sepals and petals. In these flowers these non-essential organs are together called as perianth. The individual parts of perianth are called tepals.
Q4. Prostate gland and seminal vehicle perform the function of
Answer : Option A
Explaination / Solution:
Prostate gland and seminal vehicle provide nutrient to sperm and also provide fluid medium for the motility of sperm.
Q5. In yeast, during fermentation the glycolysis pathway leads to
Answer : Option B
Explaination / Solution:
Yeast cells obtain energy under anaerobic conditions using a very similar process called alcoholic fermentation.
Glycolysis is the chemical breakdown of glucose to lactic acid. Alcoholic fermentation is identical to glycolysis except for the final step.
In alcoholic fermentation, pyruvic acid is broken down into ethanol and carbon dioxide.
Q6. Lymph will transport :
Answer : Option C
Explaination / Solution:
Fats are absorbed through lymph in the lacteals present in the intestinal villi.
Q7. The best method to determine the homozygous and heterozygous of an individual is
Answer : Option A
Explaination / Solution:
Homozygous and heterozygous of an individual is determined by test cross method in which homozygous recessive is crossed with F1 hybrid individual.
Q8. How many net ATP are produced in Glycolysis?
Answer : Option B
Explaination / Solution:
At the end of glycolysis pathway, 2 net ATP molecules at step 6 and step 9 are produced.
Q9. Vinegar is obtained from molasses with the help of
Answer : Option C
Explaination / Solution:
Vinegar is chemically diluted acetic acid which is produced by fermentation of molasses in presence of yeast and Acetobactor.
Q10. Which of the following is a line source of air pollution?
Answer : Option B
Explaination / Solution:
A line source, as opposed to a point source, area source, or volume source, is a source of air, noise, water contamination or electromagnetic radiation that emanates from a linear (one-dimensional) geometry.
A smoking person while walking is line source of air pollution as the smoke released by smoking person spread in linear direction.
