Biology - Online Test
Q1. Micro-organisms that grow in milk and convert it to curd is commonly called
Answer : Option A
Explaination / Solution:
The micro-organisms that grow in milk and convert it to curd is commonly called lactic acid bacteria. Micro-organism such as Lactobacillus and others commonly called as lactic acid bacteria (LAB).
Q2. What is the life span of RBC in humans ?
Answer : Option A
Explaination / Solution:
No Explaination.
Q3. Extra nuclear inheritance is a consequence of presence of genes in
Answer : Option A
Explaination / Solution:
No Explaination.
Q4. Which of the following is correct regarding HIV, hepatitis B, gonorrhoea and trichomoniasis?
Answer : Option C
Explaination / Solution:
No Explaination.
Q5. Who invented electron microscope?
Answer : Option C
Explaination / Solution:
No Explaination.
Q6.
Air pollution is:
i. 5th leading cause of deaths in Indian sub-continent.
ii. ranked among top 10 killers in the world.
iii. 7th most dangerous killer in south Asia.
Answer : Option A
Explaination / Solution:
Air pollution causes a number of respiratory disease including lung cancer. It is the 5th leading causes of deaths in Indian sub-constinent and 7th most dangerous killer in south Asia.
Q7. Genes for cytoplasmic male sterility in plants are generally located in
Answer : Option A
Explaination / Solution:
No Explaination.
Q8. Haemophilia is more common in males because it is a
Answer : Option D
Explaination / Solution:
No Explaination.
Q9.
Refer
to the given figure and select the correct statement
i.
A, B, and C are histogen of shoot apex
ii.
A Gives rise to medullary rays.
iii.
B Gives rise to cortex
iv.
C Gives rise to epidermis
Answer : Option C
Explaination / Solution:
No Explaination.
Q10. An allohexaploidy contains
Answer : Option C
Explaination / Solution:
No Explaination.
