Heredity and Evolution
In the process of natural selection, evolution is the:
mechanism
outcome
process
factor
outcome
Natural selection is the phenomenon wherein nature selects organisms having traits favourable to the environment. The organisms exhibit different characteristics due to different genotypes (variation). If these characteristics are favoured by the natural environment, the organisms with these variations survive and propagate, and may form different species. Thus, evolution is the outcome of natural selection.
outcome Natural selection is the phenomenon wherein nature selects organisms having traits favourable to the environment. The organisms exhibit different characteristics due to different genotypes (variation). If these characteristics are favoured by the natural environment, the organisms with these variations survive and propagate, and may form different species. Thus, evolution is the outcome of natural selection.
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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
The preserved traces of living organisms are known as:
A. Humus
B. Crust
C. Skeleton
D. Fossils
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