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Free download in PDF Principles of Inheritance and Variation Short Questions with Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams like NEET, AIIMS, JIPMER etc. These short solved questions or quizzes are provided by Gkseries./p>
First artificial mutation was induced in
[A]
Barley
[B]
Maize
[C]
Drosophila
[D]
Neurospora
(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%
(3)
If a hybrid expresses a character, it is called _________
[A]
Epistasis
[B]
Dominant
[C]
Co-dominant
[D]
Recessive
(4)
A plant having the genotype AABbCC will produce ______ kinds of gametes
(5)
Colour blindness is an _________ linked recessive trait
[A]
Z chromosome
[B]
Y chromosome
[C]
X chromosome
[D]
None of the above
(6)
In most species, mitochondrial DNA is passed down from
[A]
DNA
[B]
Mother and Father
[C]
Father
[D]
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
(9)
An individual’s collection of genes is called ______
[A]
Genotype
[B]
Phenotype
[C]
Trait
[D]
None of the above
(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
(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
(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)
(17)
Cause of chromosomal mutation:
[A]
Euploidy
[B]
Polyploidy
[C]
Physical effect
[D]
All of these
(18)
Mendal was born in:
[A]
17th century
[B]
18th century
[C]
19th century
[D]
8th 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
(20)
First geneticist/father of genetics was:
[A]
de Vries
[B]
Mendel
[C]
Darwin
[D]
Morgan
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