NEET Biology | Daily MCQs Practice Questions | 24July 2024 | NEET Exam
Engage with NEET Biology Daily MCQs Practice Questions for NEET exam preparations through daily updated online quiz (24 July 2024).
1. Question
How many types of pyrimidine Nitrogenus –bases are found in a m-RNA :-
One
Two
Three
Five
Correct Answer
Wrong Answer
2. Question
Adenine + Ribose + Phosphate form :
adenosine
adenylic acid
adenosine diphosphate
denosine triphosphate
Correct Answer
Wrong Answer
3. Question
Mendelian result remain unrecognized till 1900 because-
Communication was not easy in those day
Mendels concept of gene as stable and discrete units was not accepted by his contemporaries
Mendels approach of using mathematics to explain biological phenomena was totally new
All the above
Correct Answer
Wrong Answer
4. Question
Statement - I : In Morgan's experiment, cross-B showed less recombination than cross-A.
Statement - II : Walter Sutton and Theodore Boveri noted that the behaviour of chromosomes was parallel to the behaviour of genes
Statement I and II both are correct
Statement I and II both are incorrect
Only Statement I is correct
Only Statement II is correct
Correct Answer
Wrong Answer
5. Question
E. coli bacteria were grown on heavy nitrogen medium for several generation and then transfered to normal or light nitrogen source. What must be the number of pure heavy DNA molecules after four generations on light nitrogen medium ?
Zero
Two
Four
Eight
Correct Answer
Wrong Answer
6. Question
Which of the following is not an inclusion body?
Glucogen granules
Phosphate granules
Cyanophycean granules
Polysome
Correct Answer
Wrong Answer
7. Question
If a bacterial cell divides once every minute and take 23 minutes to fill a bottle. How much time (in minute) it will take to fill half the bottle.
23
12
22
46
Correct Answer
Wrong Answer
8. Question
Select the correct statements from the following
(a) Inferior ovary in found in Compositae family
(b) Superior ovary is found in Malvaceae family
(c) Inferior ovary is found in Cucurbitaceae family
(d) Superior ovary is found in Asteraceae family
a and b only
a and d only
a, b and c
a, c and d
Correct Answer
Wrong Answer
9. Question
Gram, Arhar, Tomato, Brinjal, Tulip, Gloriosa, Indigofera, Potato, Asparagus, Aloe, Petunia, China rose, Lemon, Pea, Argemone, Primrose, Sun flower, Mustard.
Among above these plants how many plants have axile placentation.
Nine
Eight
Eleven
Ten
Correct Answer
Wrong Answer
10. Question
Find incorrect statements about sclerenchyma :-
(a) Wide lumen with lignified cell wall.
(b) Presence of pits.
(c) Present in hypodermis of maize and sunflower.
(d) These are dead and without protoplast.
a, d
a, b
b, c, d
a, c
Correct Answer
Wrong Answer
11. Question
Which of the following is commonly observed in gymnosperm but not observed in dicot plant ?
Tracheids
Vessels
Sieve cell
Companion cell
Correct Answer
Wrong Answer
12. Question
Wind pollinated flowers are :
Small, producing nectar and dry pollen
Small, brightly coloured, producing large number of pollen grains
Small, producing large number of dry pollen grains
Large producing abundant nectar and pollen
Correct Answer
Wrong Answer
13. Question
Which one of the following is not a functional aspect of an ecosystem ?
Energy flow
Decomposition
Productivity
Stratification
Correct Answer
Wrong Answer
14. Question
Assertion : Careful analysis of records shows that extinctions across taxa are not random
Reason : Amphibians appear to be more vulnerable to extinction.
Both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.
Both Assertion & Reason are True but Reason is not a correct explanation of the Assertion.
Assertion is True but the Reason is False.
Both Assertion & Reason are False.
Correct Answer
Wrong Answer
15. Question
The population growth is generally described by the following equation :
What does 'r' represent in the given equation ?
Population density at time 't'
Intrinsic rate of natural increase
Carrying capacity
The base of natural logarithm
