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

( a ) − ( iv ) ; ( b ) − ( iii ) ; ( c ) − ( ii ) ; ( d ) − ( i )

( a ) − ( iii ) ; ( b ) − ( ii ) ; ( c ) − ( i ) ; ( d ) − ( iv )

( a ) − ( ii ) ; ( b ) − ( i ) ; ( c ) − ( iv ) ; ( d ) − ( iii )

( a ) − ( i ) ; ( b ) − ( iv ) ; ( c ) − ( iii ) ; ( d ) − ( ii )

Different origin but similar functions

Common origin and common functions

Different origin and different functions

Common origin but different functions

Which pair does not show divergent evolution

EASY

Life Sciences>Biological Evolution: Unity and Diversity>Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.>Evidence of Common Ancestry and Diversity - Genetic information provides evidence of evolution. DNA sequences vary among species, but there are many overlaps;in fact, the ongoing branching that produces multiple lines of descent can be inferred by comparing the DNA sequences of different organisms. Such information is also derivable from the similarities and differences in amino acid sequences and from anatomical and embryological evidence.

Which of the following structures is homologous to the wing of a bird?

MEDIUM

Life Sciences>Biological Evolution: Unity and Diversity>Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.>Evidence of Common Ancestry and Diversity - Genetic information provides evidence of evolution. DNA sequences vary among species, but there are many overlaps;in fact, the ongoing branching that produces multiple lines of descent can be inferred by comparing the DNA sequences of different organisms. Such information is also derivable from the similarities and differences in amino acid sequences and from anatomical and embryological evidence.

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

Life Sciences>Biological Evolution: Unity and Diversity>Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.>Evidence of Common Ancestry and Diversity - Genetic information provides evidence of evolution. DNA sequences vary among species, but there are many overlaps;in fact, the ongoing branching that produces multiple lines of descent can be inferred by comparing the DNA sequences of different organisms. Such information is also derivable from the similarities and differences in amino acid sequences and from anatomical and embryological evidence.

Which of the following is an example of convergent evolution?

MEDIUM

Life Sciences>Biological Evolution: Unity and Diversity>Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.>Evidence of Common Ancestry and Diversity - Genetic information provides evidence of evolution. DNA sequences vary among species, but there are many overlaps;in fact, the ongoing branching that produces multiple lines of descent can be inferred by comparing the DNA sequences of different organisms. Such information is also derivable from the similarities and differences in amino acid sequences and from anatomical and embryological evidence.

The similarity of bone structure in the forelimbs of many vertebrates is an example of:

MEDIUM

Life Sciences>Biological Evolution: Unity and Diversity>Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.>Evidence of Common Ancestry and Diversity - Genetic information provides evidence of evolution. DNA sequences vary among species, but there are many overlaps;in fact, the ongoing branching that produces multiple lines of descent can be inferred by comparing the DNA sequences of different organisms. Such information is also derivable from the similarities and differences in amino acid sequences and from anatomical and embryological evidence.

Organic compounds first evolved in earth required for origin of life were :

MEDIUM

Life Sciences>Biological Evolution: Unity and Diversity>Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.>Evidence of Common Ancestry and Diversity - Genetic information provides evidence of evolution. DNA sequences vary among species, but there are many overlaps;in fact, the ongoing branching that produces multiple lines of descent can be inferred by comparing the DNA sequences of different organisms. Such information is also derivable from the similarities and differences in amino acid sequences and from anatomical and embryological evidence.

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

EASY

Life Sciences>Biological Evolution: Unity and Diversity>Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.>Evidence of Common Ancestry and Diversity - Genetic information provides evidence of evolution. DNA sequences vary among species, but there are many overlaps;in fact, the ongoing branching that produces multiple lines of descent can be inferred by comparing the DNA sequences of different organisms. Such information is also derivable from the similarities and differences in amino acid sequences and from anatomical and embryological evidence.

In Bougainvillea and Cucurbita, the axillary bud is modified into thorn and tendril respectively. This is an example of

HARD

Life Sciences>Biological Evolution: Unity and Diversity>Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.>Evidence of Common Ancestry and Diversity - Genetic information provides evidence of evolution. DNA sequences vary among species, but there are many overlaps;in fact, the ongoing branching that produces multiple lines of descent can be inferred by comparing the DNA sequences of different organisms. Such information is also derivable from the similarities and differences in amino acid sequences and from anatomical and embryological evidence.

Which evolutionary process is denoted in the given diagram.

Question Image

EASY

Life Sciences>Biological Evolution: Unity and Diversity>Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.>Evidence of Common Ancestry and Diversity - Genetic information provides evidence of evolution. DNA sequences vary among species, but there are many overlaps;in fact, the ongoing branching that produces multiple lines of descent can be inferred by comparing the DNA sequences of different organisms. Such information is also derivable from the similarities and differences in amino acid sequences and from anatomical and embryological evidence.

Flippers of Penguins and Dolphins are examples of

EASY

Life Sciences>Biological Evolution: Unity and Diversity>Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.>Evidence of Common Ancestry and Diversity - Genetic information provides evidence of evolution. DNA sequences vary among species, but there are many overlaps;in fact, the ongoing branching that produces multiple lines of descent can be inferred by comparing the DNA sequences of different organisms. Such information is also derivable from the similarities and differences in amino acid sequences and from anatomical and embryological evidence.

Which of the following refer to correct example(s) of organisms which have evolved due to changes in environment brought about by anthropogenic action?

(a) Darwin’s Finches of Galapagos islands.
(b) Herbicide resistant weeds.
(c) Drug resistant eukaryotes.
(d) Man-created breeds of domesticated animals like dogs.

MEDIUM

Life Sciences>Biological Evolution: Unity and Diversity>Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.>Evidence of Common Ancestry and Diversity - Genetic information provides evidence of evolution. DNA sequences vary among species, but there are many overlaps;in fact, the ongoing branching that produces multiple lines of descent can be inferred by comparing the DNA sequences of different organisms. Such information is also derivable from the similarities and differences in amino acid sequences and from anatomical and embryological evidence.

Which of the following does not show divergent evolution?

EASY

Life Sciences>Biological Evolution: Unity and Diversity>Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.>Evidence of Common Ancestry and Diversity - Genetic information provides evidence of evolution. DNA sequences vary among species, but there are many overlaps;in fact, the ongoing branching that produces multiple lines of descent can be inferred by comparing the DNA sequences of different organisms. Such information is also derivable from the similarities and differences in amino acid sequences and from anatomical and embryological evidence.

The ________ theory attempts to explain to us the origin of the universe.

MEDIUM

Life Sciences>Biological Evolution: Unity and Diversity>Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.>Evidence of Common Ancestry and Diversity - Genetic information provides evidence of evolution. DNA sequences vary among species, but there are many overlaps;in fact, the ongoing branching that produces multiple lines of descent can be inferred by comparing the DNA sequences of different organisms. Such information is also derivable from the similarities and differences in amino acid sequences and from anatomical and embryological evidence.

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

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

EASY

Life Sciences>Biological Evolution: Unity and Diversity>Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.>Evidence of Common Ancestry and Diversity - Genetic information provides evidence of evolution. DNA sequences vary among species, but there are many overlaps;in fact, the ongoing branching that produces multiple lines of descent can be inferred by comparing the DNA sequences of different organisms. Such information is also derivable from the similarities and differences in amino acid sequences and from anatomical and embryological evidence.