Heredity and Evolution
The preserved traces of living organisms are known as:
Humus
Crust
Skeleton
Fossils
Fossils
The preserved traces of living organisms like plants, animals, insects from remote pastare known as fossils. Study of fossils is known as paleontology. Fossils are studied to understand the process of evolution and to establishevolutionaryrelationships.
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Human cells have ______ pair(s) of autosomes.A. 23
B. 2
C. 22
D. 1
According to fossil discovered up to present time, the origin and evolution of man started from:
A. France
B. Java
C. Africa
D. China
Human baby will be a male if its 23rd chromosome pair is:
A. XX
B. XY
C. X
D. XXX
The evolution of vegetable broccoli belonging to the cabbage family is an example of:
A. natural selection
B. artificial selection
C. elimination
D. speciation
The figure below depicts a situation where a rare variation has become common. The green coloured beetle population has become common because it gave them a survival advantage. This is an example of:
A. Artificial selection
B. Natural selection
C. Accidental selection
D. Random selection
In evolutionary terms, we have more in common with a:
A. monkey
B. rat
C. chimpanzee
D. gorilla
Speciation may take place when _______ is/are combined with geographical isolation.
A. variations
B. genetic engineering
C. cloning
D. duplication
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