Questions

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11 questions · self-marked practice — reveal the answer and mark yourself.

Question 11 Mark
Fill in the following blanks with suitable words:
Genes always work in _________.
Answer
Genes always work in Pairs.
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Question 21 Mark
Fill in the following blanks with suitable words:
Most people have________ earlobes but some have________ earlobes.
Answer
Most people have Free earlobes but some have attached earlobes.
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Question 31 Mark
Fill in the following blanks with suitable words:
The_______ chromosomes for a______ are XX whereas that for a______are XY.
Answer
The Sex chromosomes for a Female are XX whereas that for a male are XY.
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Question 41 Mark
Fill in the following blanks with suitable words:
The human forelimb and bat’s forelimb are an example of ________ organs whereas an insect’s wing and a bat’s wing are an example of _______ organs.
Answer
The human forelimb and bat’s forelimb are an example of Homologous organs whereas an insect’s wing and a bat’s wing are an example of Analogous organs.
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Question 51 Mark
Fill in the following blanks with suitable words: The scientific name of all human beings is ________ .
Answer
The scientific name of all human beings is Homo sapiens.
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Question 61 Mark
Fill in the following blanks with suitable words:
All races of man have ______ blood groups.
Answer
All races of man have Four blood groups.
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Question 71 Mark
Fill in the following blanks with suitable words:A human gamete contains________ chromosomes whereas a normal body cell has _________ chromosomes in it.
Answer
A human gamete contains 24 chromosomes whereas a normal body cell has 46 chromosomes in it.
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Question 81 Mark
Fill in the following blanks with suitable words:
Broccoli has evolved from _____ by the process of artificial selection.
Answer
Broccoli has evolved from Wild Cabbage by the process of artificial selection.
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Question 91 Mark
Fill in the following blanks with suitable words:
In pea plants, the gene for dwarfness is _________ whereas that for tallness is __________.
Answer
In pea plants, the gene for dwarfness is Recessive whereas that for tallness is Dominant.
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Question 101 Mark
Fill in the following blanks with suitable words:
The theory of natural selection for evolution was proposed by _____.
Answer
The theory of natural selection for evolution was proposed by Darwin.
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Question 111 Mark
Fill in the following blanks with suitable words:
The evolution of eye is an example of evolution by ________ .
Answer
The evolution of eye is an example of evolution by Stages.
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