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Chromosomal Inheritance Quiz

Chromosomal Inheritance Quiz

Boveri and Sutton's chromosome theory of inheritance states that genes are found at specific locations on chromosomes, and that the behavior of chromosomes during meiosis can explain Mendel's laws of inheritance

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Quiz Questions And Answers

The theory of chromosomal inheritance was first proposed by

Mendel.
Morgan.
Sutton

In Drosophila, the sex of an individual is influenced by the number of copies of which chromosome?

X
1
2

The white eye mutation in Drosophila was shown to be sex-linked and caused by a gene residing on chromosome

Y
X
1

Genetic exchange between two arms of a chromosome pair is more likely to occur if the distance between the genes is great. It is called

Epistasis.
crossing over
Pleiotropy

Occasionally, chromosomes fail to separate during meiosis, leading to a condition in which the diploid number is not normal. This phenomenon is called

Epistasis
Dis junction
No disjunction

What of the following provides the best evidence that DNA is the genetic material?

Biomolecular composition of chromosomes
Transformation using heat-inactivated bacteria
Presence of DNA in all cells

Chromosomes were first seen by

Hoffmeister
Waldeyer
Strasburger

Chromosome ends are called

Satellites
Tellomeres
Centromeres

A chromosome with sub-terminal centromere is

Acentric
Metacentric
Acrocentric

A chromosome with centromere near the middle is

Sybmetacentric
Metacentric
Telocentric

Puffs or balbiani rings in salivary gland chromosome are site of

DAN replication
DNA replication
RNA replication

Chromosome theory of inheritance was proposed by

Sutton (1902)
Boveri (1902)
Both 1 and 2

Gene for colour blindness in man is located on

X-chromosome only
Y-chromosome only
Either X-chromosome or Y-chromosome

A normal woman is married to a colour blind man. The children are expected to be

All normal
50% sons are colour blind
All daughters are normal but carrier whereas all sons are normal phenotypically as well as genotypically

Chromosomes other than sex chromosomes are called

Autosomes
Heterosomes
Karyosomes
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