Biology
General
Easy
Question
Atavism is
- Appearance of ancestral traits
- Loss of existing traits
- Modification of existing characters
- Loss of new characters
The correct answer is: Appearance of ancestral traits
Atavisms
Example living whales with legs, newborn babies with tails. Anatomical atavisms are closely related conceptually to vestigial structures.
An atavism is the reappearance of a lost character specific to a remote evolutionary ancestor and not observed in the parents or recent ancestors of the organism displaying the atavistic character.
Atavisms have several essential features (i) presence in adult stages of life, (ii) absence in parents or recent ancestors and (iii) extremely rare in a population. For developmental reasons, the occasional occurrence of atavisms is expected under common descent if structures of functions are gradually lost between ancestor and descendant lineages
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Which of the following pairs is correct?
Which of the following pairs is correct?
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A good example for recapitulation theory is
A good example for recapitulation theory is
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Although all mammals have some common characters, but they shows conspicuous differences due to
Although all mammals have some common characters, but they shows conspicuous differences due to
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Select the examples which favours the mutational theory of evolution
I. Ancon sheep II. Hornless cattle
III. Cicer gigas IV. Novel oranges
V. Hairless cat VI. Double toed cat
The correct combination is
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I. Ancon sheep II. Hornless cattle
III. Cicer gigas IV. Novel oranges
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The correct combination is
BiologyGeneral
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In which epoch, only modern humans prevails?
In which epoch, only modern humans prevails?
BiologyGeneral
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Identify the cranial capacity 
and 
of the given primates
PrimatesCranial Capacities (in cubic centimetris)
1. Heidelberg man1300 cc
2. Neanderthal man
3. Cro-Magnon man1650 cc
4. Living Modern man
Identify the cranial capacity and of the given primates
PrimatesCranial Capacities (in cubic centimetris)
1. Heidelberg man1300 cc
2. Neanderthal man
3. Cro-Magnon man1650 cc
4. Living Modern man
BiologyGeneral
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Genetic basis of adaptation was performed by
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Mark the correct statements
I. Fitness of individuals means reproductive fitness
II. Homology in vertebrae brain indicates common ancestry
III. Theory of acquired character was given by de Vries
IV. After industrialization, the white moth did not survive due to predators
The correct option is
Mark the correct statements
I. Fitness of individuals means reproductive fitness
II. Homology in vertebrae brain indicates common ancestry
III. Theory of acquired character was given by de Vries
IV. After industrialization, the white moth did not survive due to predators
The correct option is
BiologyGeneral
Biology
was written by
was written by
BiologyGeneral
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How many numbers of four digits greater than 2300 can be formed with the digits 0, 1, 2, 3, 4, 5 and 6; no digit being repeated in any number ?
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many different words can be formed from the letters of the words GANESHPURI when:
vii) How many words of 5 letters each can be formed each containing 3 consonants and 2 vowels?
many different words can be formed from the letters of the words GANESHPURI when:
vii) How many words of 5 letters each can be formed each containing 3 consonants and 2 vowels?
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many different words can be formed from the letters of the words GANESHPURI when:
vi) The vowels always occupy even places (i. e. 2nd, 4th etc.)
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many different words can be formed from the letters of the words GANESHPURI when:
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many different words can be formed from the letters of the words GANESHPURI when:
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Maths-General
Maths-
many different words can be formed from the letters of the words GANESHPURI when:
iv) The vowels are always together
many different words can be formed from the letters of the words GANESHPURI when:
iv) The vowels are always together
Maths-General
