Mcq questions of Science class 10 chapter 9 Heredity and evolution
Here we have given the mcq of class 10 science chapter 9 Heredity and evolution According the latest pattern of CBSE.These questions are prepared according to the Term 2 examination of 2022 of CBSE.
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Heredity and evolution class 10 mcq with answers
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Multiple choice questions of Heredity and evolution class 10
Question 1.
Gregor Mendel was born in
(1) Austria
(2) Russia
(3) Czechoslovakia
(4) United Kingdom
Answer:(1) Austria
Question-2.
Mendelism is related with
(1) Heredity in living beings
(2) Meiosis during sexual reproduction
(3) Mutations in living organisms
(4) None of the above
Answer:(1) Heredity in living beings
Question-3.
In 1900 AD, three biologists independently rediscovered Mendel's principles. They were
(1) Sutton, Morgan and Bridges
(2) Bateson, Punnett and Bridges
(3) Avery, MacLeod and McCarty
(4) Hugo de Vries, Correns and Tschermak
Answer:(4) Hugo de Vries, Correns and Tschermak
Question-4.
Which of the following contributed to the success of Mendel?
(1) His knowledge of biology
(2) Qualitative analysis of data
(3) Observation of distinct inherited traits
(4) Consideration of one character at a time
Answer:(4) Consideration of one character at a time
Question-5.
The reason why pea plants were suitable than dogs for Mendel's experiments
(1) Dogs have many genetic traits
(2) Pea plants can be self fertilized
(3) There were no pedigree records of dogs
(4) The pea plants favour cross-fertilization
Answer:(2) Pea plants can be self fertilized
Question-6.
Mendel choose pea plants because they
(1) were cheap
(2) were easily available
(3) have great economic importance
(4) were having contrasting characters
Answer:(4) were having contrasting characters
Question-7.
How many contrasting traits of pea were studied by Mendel?
(1) Two
(2) Four
(3) Seven
(4) Three
Answer:(3) Seven
Question-8.
Which one of the following traits of garden pea studied by Mendel was a recessive feature?
(1) Green seed colour
(2) Green pod colour
(3) Round seed shape
(4) Axial flower position
Answer:(1) Green seed colour
Question-9.
When a gene exists in more than one form, the different forms are termed as
(1) alleles
(2) heterozygotes
(3) genotypes
(4) complementary genes
Answer: (1) alleles
Question-10.
The physical appearance of an individual is known as
(1) Heterotype
(3) Morphotype
(2) Genotype
(4) Phenotype
Answer: (4) Phenotype
Question-11.
What was Mendel's most important contribution to the modern understanding of biology?
(1) The concept of meiosis
(2) The concept of chromosome
(3) The concept that genes are ordered along chromosomes
(4) The concept that hereditary information comes in discrete units
Answer: (4) The concept that hereditary information comes in discrete units
Question-12.
When a cross is made between two parents with respect to a single character, it is called
(1) dihybrid
(2) monohybrid
(3) trihybrid
(4) none
Answer: (2) monohybrid
Question-13.
Which of the following is the monohybrid ratio?
(1) 3:1
(2) 9:7
(3) 1:2
(4)9:3:3:1
Answer: (1) 3:1
Question-14.
Mendel formulated the law of purity of gametes on the basis of
(1) test cross
(2) dihybrid corss
(3) back cross
(4) monohybrid cross
Answer: (4) monohybrid cross
Question-15.
How many types of gametes will be produced in F₂ generation of a dihybrid cross of Mendel?
(1) 3
(2) 4
(3) 8
(4) 16
Answer:(2) 4
Question-16.
Recessive gene can express only in
(1) homozygous condition
(2) heterozygous condition
(3) both above conditions
(4) none of these conditions
Answer: (1) homozygous condition
Question-17.
Considering tallness and dwarfness, tallness is more wide spread among pea plants because
(1) Tallness is dominant over dwarfness
(2) Tallness is determined by one gene having many effects
(3) Tallness is determined by many genes having multiple effects
(4) None of these
Answer: (1) Tallness is dominant over dwarfness
Question-18.
A red-flowered pea plant was crossed with white flowered plant. In F, generation all plants were red.
It confirms that white colour is
(1) recessive character
(2) dominant character
(3) nongenetic expression
(4) none of the above
Answer: (1) recessive character
Question-19.
'Descent with modification' is the central theme of
(1) Recapitulation
(3) Evolution
(2) Genetics
(4) Biogenesis Study of human evolution is done under
Answer: (3) Evolution
Question-20.
study of human evolution is done under
(1) Palaeontology
(2) Anthropology
(3) Arthrology
(4) Mammology
Answer: (2) Anthropology
Question-21.
"Struggle for existence" & "Survival of fittest" are associated with
(2) Oparin hypothesis
(1) Lamarckism
(3) Mendelism
(4) Darwinism
Answer: (4) Darwinism
Question-22.
The theory of evolution of species by natural
selection was given by
(1) Mendel
(2) Darwin
(3) Morgan
(4) Lamarck
Answer: (2) Darwin
Question-23.
Select the group which shares maximum number of common characters.
(1) Two individuals of a species
(2) Two species of a genus
(3) Two genera of family
(4) Two genera of two family
Answer: (1) Two individuals of a species
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