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

1 Answer

Answer :

(2) Saltation

Related questions

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

Last Answer : Assertion :- According to Hugo de Vries , it is mutation which causes speciation and hence called it ... . D. If both Assertion & Reason are false.

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

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.

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.

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

Last Answer : c. 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

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

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

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

Description : Variations during mutations of meiotic recombinations are

Last Answer : Variations during mutations of meiotic recombinations are A. Random and directionless B. Randonm and ... and small D. Randonm, small adn directional

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

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

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

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.

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.

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

Last Answer : b) Mendel

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

Description : The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challenge, is called (a) non-random evolution (b) adaptive radiation (c) natural selection (d) convergent evolution.

Last Answer : (d) convergent evolution

Description : Which of the following is not a correct statement about the electrophilic substitution mechanism of benzene? (a) Benzene functions as a nucleophile. (b) Formation of a carbocation intermediate is the ... hybridized carbon in the ring. (d) The addition product is a frequently observed minor product.

Last Answer : The addition product is a frequently observed minor product.

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

Last Answer : meow

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

Last Answer : meow

Description : Planets do not twinkle because they (a) emit light continuously (b) are luminous sources of light (c) are nearer to us and therefore their light does not pass through the atmosphere (d) are nearer to us and therefore minor variations in their intensity are not noticeable

Last Answer : Ans:(d)

Description : Stars twinkle but planets do not twinkle because - (1) they emit light of a constant intensity (2) their distance from the earth does not change with time (3) they are very far away ... and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable

Last Answer : (4) they are nearer to the earth and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable Explanation: Eris is the most massive and second-largest ... orbiting the Sun, and the largest known body in the Solar System not visited by a spacecraft.

Description : Stars twinkle but planets do not twinkle because (1) they emit light of a constant intensity (2) their distance from the earth does not change with time (3) they are very far away from ... and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable 

Last Answer : they are nearer to the earth and hence we receive a greater amount of light and therefore minor variations in intensity are not noticeable

Description : Which one of the following sequences was proposed by Darwin and Wallace for organic evolution? (a) Overproduction, variations, constancy of population size, natural selection (b) ... variations, natural selection (d) Variations, natural selection, overproduction, constancy of population size

Last Answer : (b) Sea-horse

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

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

Last Answer : b. Wind

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.

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

Description : The first attempt to solve of mechanism of organic evolution was made by `:`

Last Answer : The first attempt to solve of mechanism of organic evolution was made by `:` A. Haeckel B. De Vries C. Lamarck D. Darwin

Description : Describe the hydrogen evolution mechanism of immersed corrosion

Last Answer : Steel tank: - Anode Cu - strip:- Cathode These types of corrosion occur usually in acidic environments, like industrial waste, solutions of non - oxidizing acids (like HCl). Process: A ... steel tank in contact with copper is corroded most with the evolution of hydrogen gas. 

Description : How do you feel about the Hugo Award winners?

Last Answer : Holy shit. Wonderwoman won over Blade Runner 2049 and Get Out? This is some Oscar level bullshit.

Description : What is your opinion on the Sad Puppies controversy that is happening in the Hugo nomination process?

Last Answer : I have a couple of friends who are Fantasy writers and they are embarrassed by it all. Seems to me to be no more than a bid for publicity to A) boost sales, and B) hopefully boost votes which ... A. Social media (where I have seen the Sad Puppy stuff) is an outstanding, inexpensive, marketing tool.

Description : Hugo Chavez (pbuh) has perished. Will you spare a few seconds to mourn this great man and hero of the poor?

Last Answer : Such a generous nature! Now he is feeding worms!

Description : Sales of "Open Veins of Latin America: Five Centuries of the Pillage of a Continent" soar to the top of the list after Hugo Chavez publicly hands a copy of it to Barack Obama. Are you going to read it?

Last Answer : I might. I don’t know as much about Latin American history as I should.

Description : Difference between phenotypic ratio and genotypic ratio. -Biology

Last Answer : answer:

Description : In polygenic inheritance phenotypic characters are determined by -Biology

Last Answer : answer:

Description : Causes of phenotypic variation. -Biology

Last Answer : answer:

Description : What is the phenotypic ratio of a monohybrid cross? -Biology

Last Answer : answer:

Description : What is the phenotypic ratio of a monohybrid cross? -Biology

Last Answer : answer:

Last Answer : Hugo Chভvez's presidency is 1999-2013

Description : Hugo Devries worked on :

Last Answer : Hugo Devries worked on : A. Oenothera lamarckiana B. Lathyrus odoratus C. Pisum sativum D. Arachis hypogea

Description : The process by which organisms with different evolutionary history evolve similar phenotypic adaptations in response to a common environmental challen

Last Answer : The process by which organisms with different evolutionary history evolve similar phenotypic ... Convergent evolution D. Non-random evolution

Description : What are the genotypic and phenotypic ratios of the F2?

Last Answer : Need answer

Description : Looking for business class DSL service providers in 330-C Victor Hugo Ave. Complejo Industrial Chihuahua,C.P. 31109 Chihuahua, Chih. Mexico?

Last Answer : Telmex offerrs DSL service throughout Mexico

Description : What is the climax of Hugo?

Last Answer : you face is the climax

Description : What awards did victor hugo win?

Last Answer : Victor Marie Hugo (French: [viktɔʁ maʁi yÉ o] (About this soundlisten); 7 Ventôse year X (28 February 1802) â⠬“ 22 May 1885) was a French poet, novelist, and dramatist of the ... . Many of his works have inspired music, both during his lifetime and after his death, including the

Description : How does incomplete dominance differ from complete dominance in it's phenotypic expression?

Last Answer : In complete dominance, only one allele in the genotype is seen in the phenotype. In codominance, both alleles in the genotype are seen in the phenotype. In incomplete dominance, a mixture of the alleles in the genotype is seen in the phenotype.

Description : Look at the central panel of the portinari alterpiece by hugo van der goes. this artwork uses all of the following execpt what?

Last Answer : the trompe illusion

Description : Look at the central panel of the portinari alterpiece by hugo van der goes. this artwork uses all of the following execpt what?

Last Answer : the trompe illusion