Mark the incorrect statement?
1. Force of natural selection started with cellular form of life
2. According to natural selection rate of appearance of new forms is linked to life cycle or the life span
3. According to natural selection theory of fitness is based on characteristic which are inherited
4. Natural selection produces new genetic variability in a population.
In replica-plate experiment some bacteria able to grow in penicillin containing medium due to
1. Natural selection
2. Reproductive isolation
3. Genetic drift
4. Crossing over
'Founder effect' is related to -
1. Gene recombination and Natural selection
2. Genetic drift and origin of new species
3. isolation and Natural selection
4. Hybridization and origin of new species
In Galapagos island, Darwin found different varieties of finches, originated from a common ancestor. The original variety of these finches was:-
1. Insectivorous
2. Vegetarian
3. Seed-eating
4. Cactus eating
In the following figures, there are three skulls. Which statement is correct about these skulls?
1. A – Skull of a baby chimpanzee
B – Skull of a man
C – Skull of adult human
2. A – Skull of an adult chimpanzee
B – Skull of a baby chimpanzee
C – Skull of adult human
3. A – Skull of an adult chimpanzee
B – Skull of adult human
C – Skull of a baby chimpanzee
4. A – Skull of a baby chimpanzee
B – Skull of adult human
C – Skull of an adult chimpanzee
Adaptive radiation does not follow which of the following statements?
(1) Blackbird on Galapagos islands observed by Darwin is an amazing example of Adaptive Radiation.
(2) All the varieties of Finches evolved on the same island from original seed feeding finches to insectivorous and vegetarian finches.
(3) Australian marsupials, which are similar to each other evolved from an ancestral stock but all within the Australian island continent.
(4) More than one adaptive radiation appeared to have occurred in an isolated geographical area representing different habitats, known as convergent evolution
What will be the frequency of homozygote dominant in a population of triploid organisms.
(1) p×p×p
(2) AA
(3) p
(4) P
Which of the following could evolve by the time of 500 mya?
(1) Jawless fishes
(2) Invertebrates
(3) Sea weeds
(4) Lobefins
Bryophytes evolved from
(1) Psilophyton
(2) Rhynia type plants
(3) Tracheophyte ancestors
(4) Chlorophyte ancestors
Zosterophyllum evolved from
(1) Psilophyton
(2) Rhynia type plants
(3) Tracheophyte ancestors
(4) Chlorophyte ancestors