Embryological support for evolution was proposed by:

NEET-(Oct)2020 [Evolution] [class-xii ]

• Ernst Heckel
• Karl Ernst von Baer
• Charles Darwin
• Alfred Wallace
Correct Option: A  [ Ernst Heckel ]

Remark:

The phenomenon of evolution of different species in a given geographical area starting from a point and spreading to other habitats is called:

NEET-(Oct)2020 [Evolution] [class-xii ]

• Saltation
• Co-evolution
• Natural selection
• Adaptive radiation
Correct Option: D  [ Adaptive radiation ]

Remark:

A Hominid fossil discovered in Java in 1891, now extinct, having cranial capacity of about 900 cc was:

NEET-(Oct)2020 [Evolution] [class-xii ]

• Homo erectus
• Neanderthal man
• Homo sapiens
• Australopithecus
Correct Option: A  [ Homo erectus ]

Remark:

Variations caused by mutation, as proposed by Hugo de Vries, are:

NEET-2019 [Evolution] [class-xii ]

• random and directionless
• random and directional
• small and directional
• small and directionless
Correct Option: A  [ random and directionless ]

Remark:

n a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3kg survive whereas 99% of the infants born with weights from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place?

NEET-2019 [Evolution] [class-xii ]

• Stabilizing Selection
• Directional Selection
• Disruptive Selection
• Cyclical Selection
Correct Option: A  [ Stabilizing Selection ]

Remark:

Match the hominids with their correct brain size :

NEET-2019 [Evolution] [class-xii ]

• (A)-(III), (B)-(I), (C)-(IV), (D)-(II)
• (A)-(III), (B)-(II), (C)-(I), (D)-(IV)
• (A)-(III), (B)-(IV), (C)-(I), (D)-(II)
• (A)-(IV), (B)-(III), (C)-(I), (D)-(II)
Correct Option: C  [ (A)-(III), (B)-(IV), (C)-(I), (D)-(II) ]

Remark:

The flippers of the Penguins and Dolphins are the example of the:

NEET-2024 [Evolution] [class-xii ]

• Natural selection
• Adaptive radiation
• Divergent evolution
• Convergent evolution
Correct Option: D  [ Convergent evolution ]

Remark: EVOLUTION-NCERT Book Page no:131