Principles of Inheritance and Variation MCQs | Principles of Inheritance and Variation Short Questions with Answers

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Questions
First artificial mutation was induced in
A Barley
B Maize
C Drosophila
D Neurospora

Answer:Drosophila
2 Hemophilic person marries a girl having no history of the disease in her pedigree. What is the chance that a haemophilic child is born to them
A 0%
B 25%
C 50%
D 75%

Answer: 0%
3 If a hybrid expresses a character, it is called _________
A Epistasis
B Dominant
C Co-dominant
D Recessive

Answer: Dominant
4 A plant having the genotype AABbCC will produce ______ kinds of gametes
A 5
B 4
C 3
D 2

Answer:2
5 Colour blindness is an _________ linked recessive trait
A Z chromosome
B Y chromosome
C X chromosome
D None of the above

Answer: X chromosome
6 In most species, mitochondrial DNA is passed down from
A DNA
B Mother and Father
C Father
D Mother

Answer: Mother
7 Where are the genes for cytoplasmic male sterility in plants located?
A Chloroplast genome
B Mitochondrial genome
C Cytosome
D None of the above

Answer: Mitochondrial genome
8 _________ is a type of trait whose phenotype is influenced by more than one gene
A Oncogenic Trait
B Monogenic trait
C Polygenic trait
D None of the above

Answer:Polygenic trait
9 An individual’s collection of genes is called ______
A Genotype
B Phenotype
C Trait
D None of the above

Answer:Genotype
10 A man marries a woman and both do not show any apparent traits of inherited disease. Five sons and two daughters are born, and three of their sons suffer from a disease. However, none of the daughters is affected. The following mode of inheritance for the disease is
A Sex-linked recessive
B Sex-linked dominant
C Autosomal dominant
D None of the above

Answer: Sex-linked recessive
11 A trait that “overpowers” and hide another trait is called
A Overpowering trait
B Complex trait
C Recessive trait
D Dominant Trait

Answer: Dominant Trait
12 Why is haemophilia a disease that is more commonly seen in males?
A The disease is Y- linked
B The disease is X- linked
C Both (1) and (2)
D None of the above

Answer: The disease is X- linked
13 Sucess of mendal is
A Selection of Peaplant
B Studied of free characters
C More Characters selection
D Pea is Bisexual

Answer: Selection of Peaplant
14 Loss of Melanin pigment cause for:
A Colourblindness
B Depigmentation
C Phenyl Ketoneuria
D Alkaptoneuria

Answer: Depigmentation
15 Gunetical identification of male human is:
A By Nucleus
B By cells
C By Autosome
D By Sex-chromosome

Answer:By Sex-chromosome
16 Rh+ individual gene may be:
A rr
B TT
C Rr
D Both (a) and (c)

Answer:Rr
17 Cause of chromosomal mutation:
A Euploidy
B Polyploidy
C Physical effect
D All of these

Answer:All of these
18 Mendal was born in:
A 17th century
B 18th century
C 19th century
D 8th century

Answer:17th century
19 Two genes very close on a chromosome will show:
A No crossing over
B High crossing over
C Hardly an crossing over
D Only double crossing overy

Answer: No crossing over
20 First geneticist/father of genetics was:
A de Vries
B Mendel
C Darwin
D Morgan

Answer: Mendel

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