Biology Quiz for NEET_11

Biology Quiz for NEET_11

1 / 30

RE 1, RE 2, RE 3, and RE 4 are four different restriction enzymes with their recognition sites shown below. The arrows show the site where REs cut the DNA. Which of the following is a correct statement?

2 / 30

Given below are two statements:

Statement I: Biochemical Oxygen Demand (BOD) refers to the amount of oxygen that would be consumed if all the organic matter in one litre of water were oxidised by bacteria.

Statement II: BOD is a direct measure of the organic matter present in the water.

In light of the above statements, choose the most appropriate answer from the options given below:

3 / 30

In the following table names of some bioactive compounds and their function are given.

Bioactive compoundsApplication
i.                     Streptokinasea.       Blood-cholesterol lowering agent
ii.                   Cyclosporin Ab.       Blood clot buster
iii.                 Statinsc.        Immunosuppresant

The correct match of items from the two columns is:

4 / 30

Which of the following stages of the malarial parasite life cycle and their site of formation is incorrectly matched?

5 / 30

Which of the following is correct about the stabilizing selection?

6 / 30

Column I contains the names of theories of the origin/evolution of Life on Earth, and column II contains their explanation.

Column IColumn II
a.      Theory of Panspermiap. Life originated from pre-existing organic molecules
b.     Theory of spontaneous generationq. Life originated from spores
c.      Theory of chemical evolutionr. Life originated from rotten, decaying matter

Which of the following combinations of items from columns I and II is correct?

7 / 30

The number of genes present on human chromosome 1 is:

8 / 30

Which of the following configurations of a translating mRNA is correct?

9 / 30

In eukaryotes, the genes are _____I______ and _____II______. I and II can be:

10 / 30

In the given figure representing the process of DNA replication, the flanking (black) strands are templates. Which of them is correct?

11 / 30

Considering a triallelic characteristic in an organism with alleles designated as p++, p+, and p, where p++ is dominant over p+ and p, and p+ is dominant over p, what are the potential counts of genotypes and phenotypes?

12 / 30

In a self-pollinated heterozygous pea plant at three loci, what is the probability of obtaining individuals that are homozygous at all three loci?

13 / 30

In humans, with the primary spermatocytes having 46 chromosomes, what is the chromosomal configuration in the descendants of these cells situated in the centralmost portion of the seminiferous tubule?

14 / 30

Which of the following causes Addison’s disease?

15 / 30

The following table contains the names of hormones and their functions.

HormonesFunctions
I. Parathyroid hormonea. Diurnal rhythm
II. Thymosinsb. Differentiation of T-lymphocytes
III. Melatoninc. Stimulte smooth muscle contraction
IV. Oxytocind. Increases Ca++ level in blood

Which of the following is correctly matched?

16 / 30

Which of the following is incorrect?

17 / 30

In the context of the newfound humanoid creature on an exoplanet, boasting a heart size almost twice that of a human but with a comparable heart rate, what is the anticipated stroke volume if cardiac output is presumed to be proportionate to heart size?

 

18 / 30

Which of the following is incorrect about the process of breathing in humans?

19 / 30

Which component of F0F1 complex acts as ATP synthase?

20 / 30

The following table contains the names of plant growth regulators (PGR) and their functions. Which of them is incorrectly matched?

 PGRFunction
A).AuxinsInhibition of lateral growth
B).GibberellinsIncreases the length of the axis
C).CytokininsHelps to produce new chloroplasts in leaves
D).Abscisic acidDecreases stress tolerance in plants

21 / 30

What proportion of a typical mammalian cell's division cycle, which lasts 36 hours (in vitro), is dedicated to the M-phase if the M-phase itself spans 2 hours?

22 / 30

In the adjacent image, structures I, II, and III are:

23 / 30

The zwitterionic form of amino acids exists due to which of the following?

24 / 30

What is the phenomenon called when an organism changes colour to blend in with its background?

25 / 30

From which layer of cells does the water conduction pathway change from apoplastic to symplastic?

26 / 30

A student is given a fragment of a plant root and asked to analyse it based on its morphological features. He observed it and noted the characteristics: the root has a root cap at its tip and the distalmost part contains numerous thread-like structures. Based on this observation which of the following conclusions can be drawn?

27 / 30

The number of gill slits in the Cyclostomes is:

28 / 30

The commercial product obtained from Gelidium and Gracilaria is:

29 / 30

Which of the following is a correct statement?

30 / 30

The earliest classification of organisms was based on which of the following?

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