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WorksheetsAssignment 1: Principle of Inheritance
Total questions: 20
Worksheet time: 10mins
Who discovered X-body in spermatogenesis-
Henking
Gregor Mandel
Watson Crick
De Vries
In Grasshopper-
Male is Homogametic and Female is Heterogametic
XX-XO Mechanism is present
Male is Heterogametic and Female is Homogametic
Both 2 and 3
In Honeybee ,no.of Chromosomes present are-
In Female 32,In Male 16
32 in both Male and Female
16 in Both Male and female
40 in female
Mutation due to Change in a single base pair of DNA is-
Frame shift eg.Sickle Cell Anaemia
Point,eg.Sickle Cell Anaemia
Point, eg.Down's Syndrome
Frame shift ,eg.Down's Syndrome
Mustard gas, Phenol and Ammonia are-
Chemical Compounds
Chemical Mutagens
Physical mutagens
Insecticides
Which one is not Non -Mendelian inheritance-
Pleitropy
Polygenic Inheritance
Multiple allelism
Complete Dominance
Genotypic and Phenotypic ratio of incomplete dominance is-
1:2:1,1:21:
1:2:1,2:4:2
1:2:1,1:1:1
2:4:2,2:4:2
Human skin colour and Human height are examples of-
Pleiotropy
Polygenic inheritance
Codominance
Multiple allelism
Starch synthesis in Pea is example of-
Co dominance
Pleiotropy
Polygenic inheritance
Multiple allelism
Who rediscovered Mendel's work and when-
In 1992,De Vries,Correns and Von Tschermak Independently
In 1990,De Vries,Correns and Von Tschermak Together
In 1990,De Vries,Correns and Von Tschermak Independently
In 1990,De Vries,Correns and Von Tschermak Together
Who proposed Chromosomal Theory of inheritance-
In 1992,Walter Sutton and Theodore Crick
In 1902,Walter Sutton and Theodore Boveri
In 1902,Walter Sutton and Theodore Crick
In 1992,Walter Sutton and Theodore Boveri
Vehicles of heredity are-
Genes
Chromosomes
Chromatin
Factors
Life cycle of fruit fly(Drosophila) is-
9-10days
12-14 days
3-4 days
4-5 days
Physical association of 2 or more genes on a chromosome is-
Recombinantion
Crossing over
Linkage
Assortment
In his Cross 1 on Drosophila,T.H.Morgan crossed between-
yyww X y+y+w+w+
y+y+ww X yyw+w+
yyw+w+ X y+y+ww
yyww X wwmm
Major findings of Morgan's Experiment are-
Loosely linked genes show low recombinantion and Tightly linked genes show high recombination
Both Tightly and Loosely linked genes show high recombination
Both Tightly and Loosely linked genes show low recombination
Tightly linked genes show low recombinantion and loosely linked genes show high recombination
Alfred sturtevant work is-
Sequencing of Human Genome Project
Used recombinantion frequency between gene pairs for measuring distance between genes
Discovered linkage
Explained crossing over
Sickle Cell Anaemia is-
Sex Linked Recessive Disorder
Autosomal DominantTrait
Autosomal Recessive Trait
Sex Linked Dominant Trait
Down's Syndrome is due to-
Trisomy of 18
Trisomy of 21
Monosomy of 18
Monosomy of 21
Gynaecomastia condition is result of-
Down's Syndrome
Turner's Syndrome
Klinefelter's Syndrome
Edward's Syndrome
