Heredity and Evolution MCQs | Heredity and Evolution Multiple Choice Questions and Answers
Questions
2
A cross between a tall plant (TT) and short pea plant (tt) resulted in progeny that were all tall plants because
Answer: Tallness is the dominant trait
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3
Which of the following statement is incorrect?
Answer: For every molecule of fat there is a gene
5
Select the incorrect statement
Answer: Reduction in weight of the organism due to starvation is genetically controlled
6
A basket of vegetables contains carrot, potato, radish and tomato. Which of them represent the correct homologous structures?
Answer: Radish and carrot
7
Select the correct statement
Answer: Wings of bird and wings of bat are homologous
8
A trait in an organism is influenced by
Answer: Both maternal and paternal DNA
9
According to the evolutionary theory, formation of a new species is generally due to
Answer: Accumulation of variations over several generations
10
From the list given below, select the character which can be acquired but not inherited
Answer: Size of body
11
In peas, a pure tall plant (TT) is crossed with a short plant (tt). The ratio of pure tall plants to short plants in F2 is
Answer: 3 : 1
12
The theory of evolution of species by natural selection was given by
Answer: Darwin
13
Some dinosaurs had feathers although they could not fly but birds have feathers that help them to fly. In the context of evolution this means that
Answer: Birds have evolved from reptiles
14
Which of the following best expresses the concept of the word ‘allele’?
Answer: Genes for wrinkled and round
15
The inheritance of skin colour in humans is an example of which of the following?
Answer: polygeneic inheritance
16
Which of the following gives information about the phenotype but not the genotype?
Answer: Tall pea plant
18
A pedigree chart shows:
Answer: The pattern of inheritance of a specific gene
19
Mendel discovered principles of inheritance because he:
Answer: Ignored all characteristics except a few markedly contrasting ones in which he studied
