Assertion :- According to Hugo de Vries , it is mutation which causes speciation and hence called it saltation. Reason :- Mutations are random and dir

Assertion :- According to Hugo de Vries , it is mutation which causes speciation and hence called it saltation. Reason :- Mutations are random and dir
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Assertion :- According to Hugo de Vries , it is mutation which causes speciation and hence called it ... . D. If both Assertion & Reason are false.
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According to Hugo de Vries, the mechanism of evolution is :- (1) Multiple step mutations (2) Saltation (3) Phenotypic variations (4) Minor mutations

Description : According to Hugo de Vries, the mechanism of evolution is :- (1) Multiple step mutations (2) Saltation (3) Phenotypic variations (4) Minor mutations

Last Answer : (2) Saltation

Mutation theory to explain mechanism of evolution was given by Hugo de Vries and he experimented on the :

Description : Mutation theory to explain mechanism of evolution was given by Hugo de Vries and he experimented on the :

Last Answer : Mutation theory to explain mechanism of evolution was given by Hugo de Vries and he experimented on ... Fruit fly C. China rose D. Evening primerose

Who proposed mutation theory a. J.B. Lamarck b. Charles Darwin c. Hugo de vries d. Mendel

Description : Who proposed mutation theory a. J.B. Lamarck b. Charles Darwin c. Hugo de vries d. Mendel

Last Answer : c. Hugo de vries

The plant in which Hugo de Vries introduced the concept of mutation

Description : 12.The plant in which Hugo de Vries introduced the concept of mutation (a)Oenothera lamarckiana (b)Pisum sativum (c)Allium cepa (d)Mirabilis jalapa

Last Answer : ANS.(A) Oenothera lamarckiana

According to Hugo de Uries, Speciation is due to

Description : 3) According to Hugo de Uries, Speciation is due to - a)accumulation of small variations b) intra specific breeding c)interspecific breeding d)saltaion

Last Answer : d)saltaion

______ is called as 'Father of Genetics'. (1) Charles Darwin (2) Hugo de Vries (3) Gregor Johann Mendel (4) Jean Baptiste Lamarck

Description : ______ is called as 'Father of Genetics'. (1) Charles Darwin (2) Hugo de Vries (3) Gregor Johann Mendel (4) Jean Baptiste Lamarck

Last Answer : (3) Gregor Johann Mendel Explanation: Gregor Mendel was an Austrian monk who discovered the basic principles of heredity through experiments in his garden.

Name the scientist who proved that plants have life. (1) Mendal (2) Hugo de vries (3) Jagdish Chandra Bose (4) Robert Brown

Description : Name the scientist who proved that plants have life. (1) Mendal (2) Hugo de vries (3) Jagdish Chandra Bose (4) Robert Brown

Last Answer : (3) Jagdish Chandra Bose Explanation: Jagdish Chandra Bose, on 10 May 1901, proved that plants are like any other life form. He also proved that plants have a definite life cycle.

The theory of inheritance of acquired characters are proposed by a. J.B. Lamarck b. Charles Darwin c. Gregor Mendel d. Hugo De vries

Description : The theory of inheritance of acquired characters are proposed by a. J.B. Lamarck b. Charles Darwin c. Gregor Mendel d. Hugo De vries

Last Answer : b. Charles Darwin

Match the column and find correct combination: `{:(,"Column I",,"Column II"),((a),"Drawub",p,"Mutation theory"),((b),"De Vries",q,"Protobiosis"),((c),

Description : Match the column and find correct combination: `{:(,"Column I",,"Column II"),((a),"Drawub",p,"Mutation theory"),((b),"De Vries",q,"Protobiosis"),((c),

Last Answer : Match the column and find correct combination: `{:(,"Column I",,"Column II"),((a),"Drawub",p,"Mutation theory"),((b), ... q, d=p D. a=r, b=t, c=p, d=q

Hogo de Vries gave his mutation theory on organic evolution while working on `:`

Description : Hogo de Vries gave his mutation theory on organic evolution while working on `:`

Last Answer : Hogo de Vries gave his mutation theory on organic evolution while working on `:` A. ... Drosophila melanogaster C. Pisum stivum D. Althena rosea

27. A ‘single step-large mutation’ is known as ... b) Branching descent b) Natural Selection c) Saltation d) Gene Migration

Description : 27. A ‘single step-large mutation’ is known as ... b) Branching descent b) Natural Selection c) Saltation d) Gene Migration

Last Answer : c) Saltation

7. A ‘single step-large mutation’ is known as ... a) Branching descent b) Natural Selection c) Saltation d) Gene Migration

Description : 7. A ‘single step-large mutation’ is known as ... a) Branching descent b) Natural Selection c) Saltation d) Gene Migration

Last Answer : c) Saltation

Assertion: Sewage discharge in a water body causes eutrophication. Reason: This increases the organic content in water body and, hence, the growth of

Description : Assertion: Sewage discharge in a water body causes eutrophication. Reason: This increases the organic content in water body and, hence, the growth of

Last Answer : Assertion: Sewage discharge in a water body causes eutrophication. Reason: This increases the organic content ... Reason are false, then mark (4).

The term ‘gene’ was coined by - (1) T. H. Morgan (2) W. L. Johanssen (3) G. Mendel (4) De Vries

Description : The term ‘gene’ was coined by - (1) T. H. Morgan (2) W. L. Johanssen (3) G. Mendel (4) De Vries

Last Answer : (2) W. L. Johanssen Explanation: Wilhelm Johannsen was a Danish botanist, plant physiologist and geneticist. His most well-known research concerned so-called pure lines of the self-fertile common bean. He was ... to the mother plant and to the position of seeds in pods and of pods on the plant.

Who propounded the theory of natural selection? (1) Mendal (2) Lamark (3) Darwin (4) De Vries

Description : Who propounded the theory of natural selection? (1) Mendal (2) Lamark (3) Darwin (4) De Vries

Last Answer : (3) Darwin Explanation: Natural selection is Darwin's most famous theory that was formulated in 1859.

First geneticist/father of genetics was (a) De Vries (b) Mendel (c) Darwin (d) Morgan.

Description : First geneticist/father of genetics was (a) De Vries (b) Mendel (c) Darwin (d) Morgan.

Last Answer : b) Mendel

The term ‘gene’ was coined by (1) T. H. Morgan (2) W. L. Johanssen (3) G. Mendel (4) De Vries

Description : The term ‘gene’ was coined by (1) T. H. Morgan (2) W. L. Johanssen (3) G. Mendel (4) De Vries

Last Answer : W. L. Johanssen

What is the significance of mutation and repair of mutations to evolution of sexual reproduction?

Description : What is the significance of mutation and repair of mutations to evolution of sexual reproduction?

Last Answer : meow

What is the significance of mutation and repair of mutations to evolution of sexual reproduction?

Description : What is the significance of mutation and repair of mutations to evolution of sexual reproduction?

Last Answer : meow

All the following statements about retino blastoma are true except (A) At least two mutations are required for its development (B) One mutation can be inherited from a parent (C) Children who have inherited one mutation develop retinoblastoma at a younger age (D) RB 1 gene promotes the development of retinoblastoma

Description : All the following statements about retino blastoma are true except (A) At least two mutations are required for its development (B) One mutation can be inherited from a parent (C) Children ... mutation develop retinoblastoma at a younger age (D) RB 1 gene promotes the development of retinoblastoma

Last Answer : Answer : D

Haploids are more suitable for mutation studies than the diploids. This is because (a) haploids are more abundant in nature than diploids (b) all mutations, whether dominant or recessive are expressed in haploids (c) haploids are reproductively more stable than diploids (d) mutagens penetrate in haploids more effectively than in diploids.

Description : Haploids are more suitable for mutation studies than the diploids. This is because (a) haploids are more abundant in nature than diploids (b) all mutations, whether dominant or recessive ... more stable than diploids (d) mutagens penetrate in haploids more effectively than in diploids.

Last Answer : (b) all mutations, whether dominant or recessive are expressed in haploids

Nondisjunction of a chromosome results in which of the following diagnoses? a) Down Syndrome When a pair of chromosomes fails to separate completely and creates a sperm or oocyte that contains two copies of a particular chromosome (nondisjunction) Down syndrome results from three number 21 chromosomes. b) Huntingon Disease Huntington disease is one example of a germ-line mutation. c) Duchenne Muscular Dystrophy Duchenne muscular dystrophy, an inherited form of muscular dystrophy, is an example of a genetic caused by structural gene mutations. d) Marphan Syndrome Marphan Syndrome is a genetic condition that may occur in a single family member as a result of spontaneous mutation.

Description : Nondisjunction of a chromosome results in which of the following diagnoses? a) Down Syndrome When a pair of chromosomes fails to separate completely and creates a sperm or oocyte that contains two ... genetic condition that may occur in a single family member as a result of spontaneous mutation.

Last Answer : a) Down Syndrome When a pair of chromosomes fails to separate completely and creates a sperm or oocyte that contains two copies of a particular chromosome (nondisjunction) Down syndrome results from three number 21 chromosomes.

Assertion :- Analogous structures are a result of convergent evolution. Reason :- Different strutures evolving for the same function and hence having

Description : Assertion :- Analogous structures are a result of convergent evolution. Reason :- Different strutures evolving for the same function and hence having

Last Answer : Assertion :- Analogous structures are a result of convergent evolution. Reason :- Different strutures ... . If both Assertion & Reason are false.

Assertion (A) :Sunlight reaches us without dispersion in the form of white light and not as a component. Reason(R) : Dispersion takes place due to variation of refractive index for different wavelength but in vaccum the speed of light is independent of wavelength and hence vaccum is a non- dispersive medium (a) Both A and R are true and R is the correct explanation of A. (b) Both A and R are true but R is not the correct explanation of A. (c) A is true but R is false. (d) A is false but R is true.

Description : Assertion (A) :Sunlight reaches us without dispersion in the form of white light and not as a component. Reason(R) : Dispersion takes place due to variation of refractive index for different wavelength but in vaccum the speed of ... of A. (c) A is true but R is false. (d) A is false but R is true.

Last Answer : (a) Both A and R are true and R is the correct explanation of A.

Assertion :- Absolute value of enthalpy can not be determined. Reason :- Enthalpy is defined as H = E + PV, and value of internal energy can not be de

Description : Assertion :- Absolute value of enthalpy can not be determined. Reason :- Enthalpy is defined as H = E + PV, and value of internal energy can not be de

Last Answer : Assertion :- Absolute value of enthalpy can not be determined. Reason :- Enthalpy is defined as H = ... . D. If both Assertion & Reason are false.

Assertion: The process of extinction is random. Reason: Any species not adapted to environmental con- ditions cannot survive.

Description : Assertion: The process of extinction is random. Reason: Any species not adapted to environmental con- ditions cannot survive.

Last Answer : Assertion: The process of extinction is random. Reason: Any species not adapted to environmental con- ditions ... and Reason are false, then mark (4).

A portion of the Polymorphic virus, generally called a …………………….. , creates, a random encryption, key to encrypt the remainder of the virus. A) mutual engine B) mutation engine C) multiple engine D) polymorphic engine

Description : A portion of the Polymorphic virus, generally called a …………………….. , creates, a random encryption, key to encrypt the remainder of the virus. A) mutual engine B) mutation engine C) multiple engine D) polymorphic engine

Last Answer : C) multiple engine

In wind erosion floating of less than 0.1 mm soil particle is observed in — stage a. Saltation b. Surface creep c. Suspension d. None of these

Description : In wind erosion floating of less than 0.1 mm soil particle is observed in — stage a. Saltation b. Surface creep c. Suspension d. None of these

Last Answer : c. Suspension

Saltation is a process of _____ erosion a. Water b. Wind c. Both a & b d. None of these

Description : Saltation is a process of _____ erosion a. Water b. Wind c. Both a & b d. None of these

Last Answer : b. Wind

What is a “saltation velocity” and how is it used in designing pneumatic conveying systems?

Description : What is a “saltation velocity” and how is it used in designing pneumatic conveying systems?

Last Answer : The saltation velocity is defined as the actual gas velocity (in a horizontal pipe run) at which the particles of a homogeneous solid flow will start to fall out of the gas stream. In designing, the ... 2.5 while the factor could be as high as five for course particles such as soybeans could.

The saltation of sand grains refers to the sand grains: w) being coated with salt x) moving in jumps and bounces y) moving in a steady stream z) being cemented together

Description : The saltation of sand grains refers to the sand grains: w) being coated with salt x) moving in jumps and bounces y) moving in a steady stream z) being cemented together

Last Answer : ANSWER: X -- MOVING IN JUMPS AND BOUNCES

What are the two main features of Genetic Algorithm? a) Fitness function & Crossover techniques b) Crossover techniques & Random mutation c) Individuals among the population & Random mutation d) Random mutation & Fitness function

Description : What are the two main features of Genetic Algorithm? a) Fitness function & Crossover techniques b) Crossover techniques & Random mutation c) Individuals among the population & Random mutation d) Random mutation & Fitness function

Last Answer : a) Fitness function & Crossover techniques

How would you cope? You just spent $100K defending your estate from California's DIR and you lost.

Description : How would you cope? You just spent $100K defending your estate from California's DIR and you lost.

Last Answer : It’s called get the F out of California. Seriously the state can’t keep doing things like this and expect anyone with any sense to stay. I’m sorry they are stealing from you

Why can't I get online w/ Ubuntu and D-Link DIR-655 router?

Description : Why can't I get online w/ Ubuntu and D-Link DIR-655 router?

Last Answer : You don’t want WPA Enterprise, you want WPA Personal. The password it’s asking for is the same as the key. The two are used interchangeably in this case.

D-link dir-280 status light not on... why?

Description : D-link dir-280 status light not on... why?

Last Answer : answer:Is anything lighting up on the router? I not, yes dead Or maybe the transformer/wall-wart.

What is the full form of DIR ?

Last Answer : The full form of DIR - Defense of India Rules Esq- Esquire

Lowari Pass connects: A. Kaghan Valley with Chilas B. Kalam with Gilgit C. GoramChashma with Nooristan D. Dir with Chitral

Description : Lowari Pass connects: A. Kaghan Valley with Chilas B. Kalam with Gilgit C. GoramChashma with Nooristan D. Dir with Chitral

Last Answer : ANSWER: D

Lowari Pass connects: A. Kaghan Valley with Chilas B. Kalam with Gilgit C. GoramChashma with Nooristan 77 D. Dir with Chitral

Description : Lowari Pass connects: A. Kaghan Valley with Chilas B. Kalam with Gilgit C. GoramChashma with Nooristan 77 D. Dir with Chitral

Last Answer : ANSWER: D

Kanishka ruled about AD 128-151, Buddhism flourished and thousands of monasteries and stupas were built in the Peshawar Plains and nearby: A. Swat B. Dir C. Kohistan 54 D. Chitral

Description : Kanishka ruled about AD 128-151, Buddhism flourished and thousands of monasteries and stupas were built in the Peshawar Plains and nearby: A. Swat B. Dir C. Kohistan 54 D. Chitral

Last Answer : ANSWER: A

Which switch should be used in the DIR command to view files in all directories ? 1) /P 2) /W 3) /S 4) /L

Description : Which switch should be used in the DIR command to view files in all directories ? 1) /P 2) /W 3) /S 4) /L

Last Answer : 3) /S

Which of the following commands displays names of files in sorted order? 1) DIR/N 2) DIR/SO 3) DIR/AN 4) DIR/AH

Description : Which of the following commands displays names of files in sorted order? 1) DIR/N 2) DIR/SO 3) DIR/AN 4) DIR/AH

Last Answer : 3) DIR/AN

Which switch should be used in the DIR command to view files in all directories ? 1 /P 2 /W 3 /S 4 /L

Description : Which switch should be used in the DIR command to view files in all directories ? 1 /P 2 /W 3 /S 4 /L

Last Answer : 3 /S

Which of the following commands displays names of files in sorted order? 1 DIR/N 2 DIR/SO 3 DIR/AN 4 DIR/AH

Description : Which of the following commands displays names of files in sorted order? 1 DIR/N 2 DIR/SO 3 DIR/AN 4 DIR/AH

Last Answer : 3 DIR/AN

Which of the following commands is used to list contents of directories? A. ls B. lp C. dir D. tar E. None of the above

Description : Which of the following commands is used to list contents of directories? A. ls B. lp C. dir D. tar E. None of the above

Last Answer : A. ls

What MS-DOS command is used to create a subdirectory ? (1) DIR/MK (2) MKDIR (3) CHDIR (4) RMDIR

Description : What MS-DOS command is used to create a subdirectory ? (1) DIR/MK (2) MKDIR (3) CHDIR (4) RMDIR

Last Answer : MKDIR

Which one of the following is an MS-DOS external command ? (1) DIR (2) COPY (3) FORMAT (4) PROMPT

Description : Which one of the following is an MS-DOS external command ? (1) DIR (2) COPY (3) FORMAT (4) PROMPT 

Last Answer : FORMAT

Assertion : Kidneys maintain the osmotic concentration of the blood . Reason : Kidneys eliminate either hypotonic or hypertonic urine according to the

Description : Assertion : Kidneys maintain the osmotic concentration of the blood . Reason : Kidneys eliminate either hypotonic or hypertonic urine according to the

Last Answer : Assertion : Kidneys maintain the osmotic concentration of the blood . Reason : Kidneys eliminate either ... D. If both Assertion and Reason are false

Assertion A : Paints with white lead base are not recommended for painting of iron works. Reason R : Paints with white lead base do not check rusting of iron. Select your answer according to the coding system given below: (A) Both A and R is true and, R is the correct explanation of A (B) Both A and R is true but R is not the correct explanation of A (C) A is true but R is false (D) A is false but R is true

Description : Assertion A : Paints with white lead base are not recommended for painting of iron works. Reason R : Paints with white lead base do not check rusting of iron. Select your answer according to the coding system given below: ... of A (C) A is true but R is false (D) A is false but R is true

Last Answer : Answer: Option A

Assertion A : Normally turpentine oil is recommended as thinner for indoor painting. Reason R : Turpentine oil is costlier than other thinners. Select your answer according to the coding system given below: (A) Both A and R is true and R is the correct explanation of A (B) Both A and R is true but R is not the correct explanation of A (C) A is true but R is false (D) A is false but R is true

Description : Assertion A : Normally turpentine oil is recommended as thinner for indoor painting. Reason R : Turpentine oil is costlier than other thinners. Select your answer according to the coding system given below: (A) Both A and R is ... of A (C) A is true but R is false (D) A is false but R is true

Last Answer : Answer: Option B

Assertion A : Pure lime takes a long time to develop adequate strength. Reason R : Pure lime has slow hardening characteristics. Select your answer according to the coding system given below: (A) Both A and R is true and R is correct explanation of A (B) Both A and R is true and R is not a correct explanation of A (C) A is true but R is false (D) A is false but R is true

Description : Assertion A : Pure lime takes a long time to develop adequate strength. Reason R : Pure lime has slow hardening characteristics. Select your answer according to the coding system given below: (A) Both A and R is true ... explanation of A (C) A is true but R is false (D) A is false but R is true

Last Answer : Answer: Option A