MEDIUM
Earn 100

Which of the following is an evidence of evolution from molecular biology?

50% studentsanswered this correctly

Important Questions on The Path Traversed by Life

MEDIUM

Statement (S): Less than 2% of the human genome encodes for functional units called 'proteins'.

Reason (R): The majority of the human genome is regulatory in nature.

Which of the following is true?

EASY
Which one of the following are analogous structures?
MEDIUM

Statement I: Organs which have similar structure and origin but perform different functions are called analogous organs.
Statement II : The sudden appearance of some vestigial organs in a better developed condition is called atavism

The correct option among the following is

EASY
A researcher found petrified dinosaur faeces. Which one of the following is unlikely to be found in this fossil?
EASY
 Write in chronological sequence the names of four main fossil ancestors during the course of evolution of the horse.
HARD

Match the following

  Set-I   Set-II
(A) Cyanognathus (I) Reptiles & birds
(B) Archaeopteryx (II) Amphibians & reptiles
(C) Seymouria (III) Reptiles & mammals
(D) Eusthenopteron (IV) Protochordates & fishes
    (V) Fishes & amphibians

The correct match is

MEDIUM
Convergent evolution is illustrated by ___.
MEDIUM

Assertion (A): Homologous characters are originated from a different ancestor

Reason (R): Wings of sparrow and finches are homologous

EASY
Which of the following structures is homologous to the wing of a bird?
EASY
Which of the following had the smallest brain capacity?
EASY
The primary gases that were used by Miller in his experiment are
EASY

Observe the illustration and answer the questions.

Question Image

Write any two other scientific evidences which proves evolution.

EASY
Select the INCORRECT statement from the following.
MEDIUM

Study the following statements
I) Gene that codes for the synthesis of dystrophin is the largest human gene
II) Chromosome 21 contains the highest number of genes
III Endonucleases are used to cut the DNA at specific region
IV) Whole hereditary information encoded in DNA of an organism is called genome

Among the above identify the correct statements

MEDIUM

Match List-I with List-II.

List-I List-II
(a) Adaptive radiation (i) Selection of resistant varieties due to excessive use of herbicides and pesticides
(b) Convergent evolution (ii) Bones of forelimbs in Man and Whale
(c) Divergent evolution (iii) Wings of Butterfly and Bird
(d) Evolution by anthropogenic action (iv) Darwin Finches
MEDIUM

Assertion (A): There is a sufficient reason to believe that first cells on the planet lived in an atmosphere lacking oxygen.
Reason (R): Thus even all living organisms retain the enzymatic mechanism to completely oxidise glucose without the help of oxygen. 

The correct option among the following is:

MEDIUM
Match the following
  LIST-I   LIST-II
A The golden age of reptiles I Carboniferous period
B Age of amphibians II Cenozoic era
C The golden age of fishes III Mesozoic era
D Age of mammals IV Devonian period
    V Silurian period

The correct match is

MEDIUM
Expressed sequence tags (ESTs) refers to:
EASY
Which of the following changes did not occur during the evolution of a horse?
HARD
Mention any three types of molecular evidences of evolution with example.