NEET 2019 | Principles of Inheritance and Variation Question 49 | Biology

In Antirrhinum (Snapdragon), a red flower was crossed with a white flower and in F₁ generation, pink flowers were obtained. When pink flowers were selfed, the F₂ generation showed white, red and pink flowers. Choose the incorrect statement from the following :

Ratio of F₂ is $${1 \over 4}$$ (Red) : $${2 \over 4}$$ (Pink) : $${1 \over 4}$$ (White)

Law of Segregation does not apply in this experiment

This experiment does not follow the Principle of Dominance

Pink colour in F₁ is due to incomplete dominance

NEET 2019

MCQ (Single Correct Answer)

-1

The frequency of recombination between gene pairs on the same chromosome as a measure of the distance between genes was explained by :

Alfred Sturtevant

Gregor J. Mendel

Sutton Boveri

T.H. Morgan

NEET 2019

MCQ (Single Correct Answer)

-1

What is the genetic disorder in which an individual has an overall masculine development, gynaecomastia, and is sterile?

Edward syndrome

Down’s syndrome

Turner’s syndrome

Klinefelter’s syndrome

NEET 2019

MCQ (Single Correct Answer)

-1

What map unit (Centimorgan) is adopted in the construction of genetic maps?

A unit of distance between genes on chromosomes, representing 1% cross over.

A unit of distance between genes on chromosomes, representing 50% cross over.

A unit of distance between two expressed genes, representing 10% cross over.

A unit of distance between two expressed genes, representing 100% cross over.

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NEET Subjects

Biology

Botany

Zoology

Human Health and Diseases Body Fluids and Its Circulation Locomotion and Movement Neural Control and Coordination Reproduction in Organisms Reproductive Health Structural Organisation in Animals Digestion and Absorption Excretory Products and Their Elimination Chemical Coordination and Integration Human Reproduction Animal Kingdom Breathing and Exchange of Gases Evolution