18288 + Interview Questions in Biology

1.	The efficiency of a Carnot engine which operates between the two temperatures T1=500 K and T2 =300K is:
Answer» The efficiency of a Carnot engine which operates between the two temperatures $T_{1} = 500 K a n d T_{2} = 300 K$ is:

Discussion

2.	Statement 1 - If any harmful bacteria enters our body, antigens and antibody acts on them and destroys them. Statement 2 - More than 90% of our body are bacterial cells and most of them are good guys. Does that mean that antigens and antibodies are bacterial cells?
Answer» Statement 1 - If any harmful bacteria enters our body, antigens and antibody acts on them and destroys them. Statement 2 - More than $90 %$ of our body are bacterial cells and most of them are good guys. Does that mean that antigens and antibodies are bacterial cells?

Discussion

3.	What are the major differences between the kingdoms of Monera Protista
Answer» What are the major differences between the kingdoms of Monera Protista

Discussion

4.	Regarding the assertion and reason; choose the correct option. Assertion [A]: A genetic disease that affects only one parent can have 50% chance of affecting the child. Reason [R]: An autosomal dominant defective allele can cause a disease even in heterozygous condition.
Answer» Regarding the assertion and reason; choose the correct option. Assertion [A]: A genetic disease that affects only one parent can have 50% chance of affecting the child. Reason [R]: An autosomal dominant defective allele can cause a disease even in heterozygous condition.

4.

Regarding the assertion and reason; choose the correct option. Assertion [A]: A genetic disease that affects only one parent can have 50% chance of affecting the child. Reason [R]: An autosomal dominant defective allele can cause a disease even in heterozygous condition.

Answer»

Regarding the assertion and reason; choose the correct option.

Assertion [A]: A genetic disease that affects only one parent can have 50% chance of affecting the child.

Reason [R]: An autosomal dominant defective allele can cause a disease even in heterozygous condition.

Discussion

5.	Calculate the number of phosphodiester, and glycosidic bonds in 100 base pairs long double-stranded DNA.
Answer» Calculate the number of phosphodiester, and glycosidic bonds in 100 base pairs long double-stranded DNA.

Discussion

6.	(a) Name the two growth models that represent population growth and draw the respective growth curves they represent. (b) State the basis for the difference in the shape of these curves. (c) Which one of the curves represent the human population growth at present? Do you think such a curve is sustainable? Give reason in support of your answer. [5]
Answer» (a) Name the two growth models that represent population growth and draw the respective growth curves they represent. (b) State the basis for the difference in the shape of these curves. (c) Which one of the curves represent the human population growth at present? Do you think such a curve is sustainable? Give reason in support of your answer. [5]

Discussion

7.	Who studied Golgi apparatus for the first time
Answer» Who studied Golgi apparatus for the first time

Discussion

8.	The intrinsic rate of natural increase is a measure of the:
Answer» The intrinsic rate of natural increase is a measure of the:

Discussion

9.	Which of the following steps is catalysed by Taq DNA polymerase in PCR reaction?
Answer» Which of the following steps is catalysed by Taq DNA polymerase in PCR reaction?

Discussion

10.	Refer to the given reaction. a -Ketoglutaric acid + NH4+ + NADPH Glutamate−−−−−−−−−→dehydrogenaseGlutamate+H2O+NADP It represents
Answer» Refer to the given reaction. a -Ketoglutaric acid + NH4+ + NADPH $G l u t a m a t e - -------- \to d e h y d r o g e n a s e G l u t a m a t e + H_{2} O + N A D P$ It represents

10.

Refer to the given reaction. a -Ketoglutaric acid + NH4+ + NADPH Glutamate−−−−−−−−−→dehydrogenaseGlutamate+H2O+NADP It represents

Answer»

Refer to the given reaction.

a -Ketoglutaric acid + NH4+ + NADPH

$G l u t a m a t e - -------- \to d e h y d r o g e n a s e G l u t a m a t e + H_{2} O + N A D P$

It represents

Discussion

11.	Nuclei A and B convert into a stable nucleus C. Nucleus A is converted into C by emitting 2 α-particles and 3 β - particles whereas, nucleus B is converted into C by emitting 1 α - particle and 5 β - particles. At time t=0, nuclei of A are 4N0 and nuclei of B are N0. Initially, the number of nuclei of C are zero. Half-life of A and B (into conversion of C) is 1 min and 2 min respectively. The time (in minutes) at which the rates of disintegration of A and B are equal is
Answer» Nuclei A and B convert into a stable nucleus C. Nucleus A is converted into C by emitting 2 $α$ -particles and 3 $β$ - particles whereas, nucleus B is converted into C by emitting 1 $α$ - particle and 5 $β$ - particles. At time $t = 0$ , nuclei of A are $4 N_{0}$ and nuclei of B are $N_{0}$ . Initially, the number of nuclei of C are zero. Half-life of A and B (into conversion of C) is 1 min and 2 min respectively. The time (in minutes) at which the rates of disintegration of A and B are equal is

Discussion

12.	Hotspots of biodiversity are
Answer» Hotspots of biodiversity are

Discussion

13.	Agranal chloroplast are found in:
Answer» Agranal chloroplast are found in:

Discussion

14.	Match the entries in column I with those of column II and choose the correct answer. Column IColumn IIA) Alkali treatmentM) separation of DNA fragments on gel slabB) Southern blottingN) split DNA fragments into single strandsC) ElectrophoresisO) DNA transferred to nitrocellulose sheetD) PCRP) X−ray photographyE) AutoradiographyQ) produce fragments of different sizesF) DNA treated with RENR) DNA amplification
Answer» Match the entries in column I with those of column II and choose the correct answer. $\begin{matrix} C o l u m n I & C o l u m n I I A) A l k a l i t r e a t m e n t & M) s e p a r a t i o n o f D N A f r a g m e n t s o n g e l s l a b B) S o u t h e r n b l o t t i n g & N) s p l i t D N A f r a g m e n t s i n t o s i n g l e s t r a n d s C) E l e c t r o p h o r e s i s & O) D N A t r a n s f e r r e d t o n i t r o c e l l u l o s e s h e e t D) P C R & P) X - r a y p h o t o g r a p h y E) A u t o r a d i o g r a p h y & Q) p r o d u c e f r a g m e n t s o f d i f f e r e n t s i z e s F) D N A t r e a t e d w i t h R E N & R) D N A a m p l i f i c a t i o n \end{matrix}$

Discussion

15.	One of the reasons of high death rate and low life expectancy at the time of Independence was the frequent outbreak of famines. What were the causes of the outbreak of famines? Do you think that the Britishers were sensitive towards the plight of the starving Indians?
Answer» One of the reasons of high death rate and low life expectancy at the time of Independence was the frequent outbreak of famines. What were the causes of the outbreak of famines? Do you think that the Britishers were sensitive towards the plight of the starving Indians?

Discussion

16.	50 c.c. of air at normal pressure is compressed to 38 c.c. Taking the temperature to remain constant,find the increase of pressure.
Answer» 50 c.c. of air at normal pressure is compressed to 38 c.c. Taking the temperature to remain constant,find the increase of pressure.

Discussion

17.	The three sketches given below (A, B and C) are intended to represent the replication of DNA. What should be their correct sequence starting with the first and ending with the last ? .......
Answer» The three sketches given below (A, B and C) are intended to represent the replication of DNA. What should be their correct sequence starting with the first and ending with the last ? .......

17.

The three sketches given below (A, B and C) are intended to represent the replication of DNA. What should be their correct sequence starting with the first and ending with the last ? .......

Answer»

The three sketches given below (A, B and C) are intended to represent the replication of DNA. What should be their correct sequence starting with the first and ending with the last ? .......

Discussion

18.	How does asexual reproduction lead to speciation?
Answer» How does asexual reproduction lead to speciation?

Discussion

19.	Which of the following is the most common type of population distribution pattern seen in nature?
Answer» Which of the following is the most common type of population distribution pattern seen in nature?

Discussion

20.	Particularly in Replication (Semi conservative mode of replication) of chromosomes of a Drosophila melanogaster does not require the presence of
Answer» Particularly in Replication (Semi conservative mode of replication) of chromosomes of a Drosophila melanogaster does not require the presence of

Discussion

21.	Which of these statements about lipids, is incorrect? I. Lipids are part of the cell membrane, cell organelles and other biological membranes. II. Lipids also function as insulators, they add buoyancy to cells and as shock absorbers. III. High density Lipoproteins (HDL) are harmful lipids, as they are carried by blood easily and get deposited in high pressure vessels as a blocking layer . IV. Low density Lipoproteins (LDL) are useful lipids carried in form of lipoproteins and help in clearing lipid depositions; they are also used in the formation of hormones.
Answer» Which of these statements about lipids, is incorrect? I. Lipids are part of the cell membrane, cell organelles and other biological membranes. II. Lipids also function as insulators, they add buoyancy to cells and as shock absorbers. III. High density Lipoproteins (HDL) are harmful lipids, as they are carried by blood easily and get deposited in high pressure vessels as a blocking layer . IV. Low density Lipoproteins (LDL) are useful lipids carried in form of lipoproteins and help in clearing lipid depositions; they are also used in the formation of hormones.

21.

Which of these statements about lipids, is incorrect? I. Lipids are part of the cell membrane, cell organelles and other biological membranes. II. Lipids also function as insulators, they add buoyancy to cells and as shock absorbers. III. High density Lipoproteins (HDL) are harmful lipids, as they are carried by blood easily and get deposited in high pressure vessels as a blocking layer . IV. Low density Lipoproteins (LDL) are useful lipids carried in form of lipoproteins and help in clearing lipid depositions; they are also used in the formation of hormones.

Answer»

Which of these statements about lipids, is incorrect?

I. Lipids are part of the cell membrane, cell organelles and other biological membranes.

II. Lipids also function as insulators, they add buoyancy to cells and as shock absorbers.

III. High density Lipoproteins (HDL) are harmful lipids, as they are carried by blood easily and get deposited in high pressure vessels as a blocking layer .

IV. Low density Lipoproteins (LDL) are useful lipids carried in form of lipoproteins and help in clearing lipid depositions; they are also used in the formation of hormones.

Discussion

22.	Name the methods employed in animal breeding. According to you which of the methods is best? Why?
Answer» Name the methods employed in animal breeding. According to you which of the methods is best? Why?

Discussion

23.	Moving on grass lawn facilitates better maintenance because
Answer» Moving on grass lawn facilitates better maintenance because

Discussion

24.	Carbon dioxide dissociates from carbaminohaemoglobin when
Answer» Carbon dioxide dissociates from carbaminohaemoglobin when

Discussion

25.	The most important 'trick' of the Jackdaw to win his female is
Answer» The most important 'trick' of the Jackdaw to win his female is

Discussion

26.	Secondary Success ion takes place on/in:
Answer» Secondary Success ion takes place on/in:

Discussion

27.	During development of action potential in a nerve fibre, positive and negative charges on outer and inner side of axon membrane are reversed due to
Answer» During development of action potential in a nerve fibre, positive and negative charges on outer and inner side of axon membrane are reversed due to

Discussion

28.	The lowest level of organisation among Kingdom Animalia is
Answer» The lowest level of organisation among Kingdom Animalia is

Discussion

29.	How is human being is evolved from chimpanzee?expl exp in detail.
Answer» How is human being is evolved from chimpanzee?expl exp in detail.

Discussion

30.	What are methanogens? How do they help to generate biogas? [3]
Answer» What are methanogens? How do they help to generate biogas? [3]

Discussion

31.	Which one of the following statement is correct?I)The seed of pea is albuminous II)The fruit of peach is drupe
Answer» Which one of the following statement is correct? I)The seed of pea is albuminous II)The fruit of peach is drupe

31.

Which one of the following statement is correct?I)The seed of pea is albuminous II)The fruit of peach is drupe

Answer»

Which one of the following statement is correct?

I)The seed of pea is albuminous

II)The fruit of peach is drupe

Discussion

32.	Question 15 Examine the figure (a) Is this struture present in animal cell or plant cell? (b) Can these be passes on to the progeny? How? (c) Name the metabolic processes taking place in the places marked (A) and (B).
Answer» Question 15 Examine the figure (a) Is this struture present in animal cell or plant cell? (b) Can these be passes on to the progeny? How? (c) Name the metabolic processes taking place in the places marked (A) and (B).

32.

Question 15 Examine the figure (a) Is this struture present in animal cell or plant cell? (b) Can these be passes on to the progeny? How? (c) Name the metabolic processes taking place in the places marked (A) and (B).

Answer»

Question 15
Examine the figure

(a) Is this struture present in animal cell or plant cell?

(b) Can these be passes on to the progeny? How?

(c) Name the metabolic processes taking place in the places marked (A) and (B).

Discussion

33.	dense irregular connective tissue occurs in:
Answer» dense irregular connective tissue occurs in:

Discussion

34.	Organisms with cellulosic cell walls are seen in the kingdom
Answer» Organisms with cellulosic cell walls are seen in the kingdom

Discussion

35.	Who discovered cell in living organism ? Give an example of a unicellular organism
Answer» Who discovered cell in living organism ? Give an example of a unicellular organism

Discussion

36.	What causes the faster rate of our environmental pollution?
Answer» What causes the faster rate of our environmental pollution?

Discussion

37.	Would you explain how a baby can born with two mothers and one father(regarding mitochondria)? how we can inherit only mother's mitochondrial DNA..Why not father's???
Answer» Would you explain how a baby can born with two mothers and one father(regarding mitochondria)? how we can inherit only mother's mitochondrial DNA..Why not father's???

Discussion

38.	How is sexuality determined in organisms?
Answer» How is sexuality determined in organisms?

Discussion

39.	Discuss the transport of gases in the blood
Answer» Discuss the transport of gases in the blood

Discussion

40.	Go through the following statements: (i) The stroke volume multiplied by heart rate gives the cardiac output. (ii) The second heart sound is associated with the closure of semilunar valves. (iii) Heart failure is the same as cardiac arrest or a heart attack. Which of these are correct?
Answer» Go through the following statements: (i) The stroke volume multiplied by heart rate gives the cardiac output. (ii) The second heart sound is associated with the closure of semilunar valves. (iii) Heart failure is the same as cardiac arrest or a heart attack. Which of these are correct?

Discussion

41.	Deficiency of _______ in plants causes symptoms similar to deficiency of nitrogen. It also is a component of thiamine, biotin and CoA.
Answer» Deficiency of _______ in plants causes symptoms similar to deficiency of nitrogen. It also is a component of thiamine, biotin and CoA.

Discussion

42.	Each plant or group of plants have some phylogenetic significance in relation to evolution. Cycas, one of the few living members of gymnosperms is called as the 'relic of past'. Can you establish a phylogenetic relationship of Cycas with any other group of plants that justifies the above statement?
Answer» Each plant or group of plants have some phylogenetic significance in relation to evolution. Cycas, one of the few living members of gymnosperms is called as the 'relic of past'. Can you establish a phylogenetic relationship of Cycas with any other group of plants that justifies the above statement?

Discussion

43.	The overall goal of glycolysis, Krebs cycle and ETS is formation of
Answer» The overall goal of glycolysis, Krebs cycle and ETS is formation of

Discussion

44.	The crown of teeth is covered by
Answer» The crown of teeth is covered by

Discussion

45.	The enzyme which converts carbon dioxide in the RBCs into carbonic acid, protons and bicarbonates and its co-factor is
Answer» The enzyme which converts carbon dioxide in the RBCs into carbonic acid, protons and bicarbonates and its co-factor is

Discussion

46.	Which of the following is an IUD?
Answer» Which of the following is an IUD?

Discussion

47.	Droplets of water may sometimes be seen along the margins of the leaves of a banana plant, growing in wet soil, in the mornings. Are these dew drops ? Comment upon your answer.
Answer» Droplets of water may sometimes be seen along the margins of the leaves of a banana plant, growing in wet soil, in the mornings. Are these dew drops ? Comment upon your answer.

Discussion

48.	What is the most important factor for the success of animal population?
Answer» What is the most important factor for the success of animal population?

Discussion

49.	Which of the following can not be grown in artificial culture medium?
Answer» Which of the following can not be grown in artificial culture medium?

Discussion

50.	The most abundant of all blood cells is:
Answer» The most abundant of all blood cells is:

Discussion

Explore topic-wise InterviewSolutions in Current Affairs.

The efficiency of a Carnot engine which operates between the two temperatures T1=500 K and T2 =300K is:

Statement 1 - If any harmful bacteria enters our body, antigens and antibody acts on them and destroys them. Statement 2 - More than 90% of our body are bacterial cells and most of them are good guys. Does that mean that antigens and antibodies are bacterial cells?

What are the major differences between the kingdoms of Monera Protista

Regarding the assertion and reason; choose the correct option. Assertion [A]: A genetic disease that affects only one parent can have 50% chance of affecting the child. Reason [R]: An autosomal dominant defective allele can cause a disease even in heterozygous condition.

Calculate the number of phosphodiester, and glycosidic bonds in 100 base pairs long double-stranded DNA.

Who studied Golgi apparatus for the first time

The intrinsic rate of natural increase is a measure of the:

Which of the following steps is catalysed by Taq DNA polymerase in PCR reaction?

Refer to the given reaction. a -Ketoglutaric acid + NH4+ + NADPH Glutamate−−−−−−−−−→dehydrogenaseGlutamate+H2O+NADP It represents

Hotspots of biodiversity are

Agranal chloroplast are found in:

One of the reasons of high death rate and low life expectancy at the time of Independence was the frequent outbreak of famines. What were the causes of the outbreak of famines? Do you think that the Britishers were sensitive towards the plight of the starving Indians?

50 c.c. of air at normal pressure is compressed to 38 c.c. Taking the temperature to remain constant,find the increase of pressure.

The three sketches given below (A, B and C) are intended to represent the replication of DNA. What should be their correct sequence starting with the first and ending with the last ? .......

How does asexual reproduction lead to speciation?

Which of the following is the most common type of population distribution pattern seen in nature?

Particularly in Replication (Semi conservative mode of replication) of chromosomes of a Drosophila melanogaster does not require the presence of

Name the methods employed in animal breeding. According to you which of the methods is best? Why?

Moving on grass lawn facilitates better maintenance because

Carbon dioxide dissociates from carbaminohaemoglobin when

The most important 'trick' of the Jackdaw to win his female is

Secondary Success ion takes place on/in:

During development of action potential in a nerve fibre, positive and negative charges on outer and inner side of axon membrane are reversed due to

The lowest level of organisation among Kingdom Animalia is

How is human being is evolved from chimpanzee?expl exp in detail.

What are methanogens? How do they help to generate biogas? [3]

Which one of the following statement is correct?I)The seed of pea is albuminous II)The fruit of peach is drupe

Question 15 Examine the figure (a) Is this struture present in animal cell or plant cell? (b) Can these be passes on to the progeny? How? (c) Name the metabolic processes taking place in the places marked (A) and (B).

dense irregular connective tissue occurs in:

Organisms with cellulosic cell walls are seen in the kingdom

Who discovered cell in living organism ? Give an example of a unicellular organism

What causes the faster rate of our environmental pollution?

Would you explain how a baby can born with two mothers and one father(regarding mitochondria)? how we can inherit only mother's mitochondrial DNA..Why not father's???

How is sexuality determined in organisms?

Discuss the transport of gases in the blood

Go through the following statements: (i) The stroke volume multiplied by heart rate gives the cardiac output. (ii) The second heart sound is associated with the closure of semilunar valves. (iii) Heart failure is the same as cardiac arrest or a heart attack. Which of these are correct?

Deficiency of _______ in plants causes symptoms similar to deficiency of nitrogen. It also is a component of thiamine, biotin and CoA.

Each plant or group of plants have some phylogenetic significance in relation to evolution. Cycas, one of the few living members of gymnosperms is called as the 'relic of past'. Can you establish a phylogenetic relationship of Cycas with any other group of plants that justifies the above statement?

The overall goal of glycolysis, Krebs cycle and ETS is formation of

The crown of teeth is covered by

The enzyme which converts carbon dioxide in the RBCs into carbonic acid, protons and bicarbonates and its co-factor is

Which of the following is an IUD?

Droplets of water may sometimes be seen along the margins of the leaves of a banana plant, growing in wet soil, in the mornings. Are these dew drops ? Comment upon your answer.

What is the most important factor for the success of animal population?

Which of the following can not be grown in artificial culture medium?

The most abundant of all blood cells is: