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Sex-linked Inheritance MCQs for Competitive Exams

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Sex-linked Inheritance MCQs for Competitive Exams

Practice with answers, explanations, and exam-focused revision notes.

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Topic Notes: Sex-linked Inheritance

These notes summarize the key preparation context before you attempt the MCQs. Review the topic focus, then practice the questions below with answers and explanations.

Quick Overview

Sex-linked Inheritance MCQs in Biology are useful for candidates who need targeted practice for CSS, PMS, FPSC, PPSC, NTS, entry tests, and other competitive exams in Pakistan. This topic page is designed for quick revision, repeated practice, and exam-focused preparation.

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11
How is a gynandromorph biologically defined?
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12
Which combination of sex chromosomes results in the birth of a male child?
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13
According to Lillie's research on freemartins, what is the outcome when twins of opposite sex are born in cattle?
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14
What is the typical sex chromosome composition found in human males?
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15
Which of the following conditions is classified as a sex-linked genetic disorder?
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16
According to the ratio theory of sex determination, what is the primary factor that determines an individual's sex?
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17
How does the hereditary condition known as haemophilia manifest in the body?
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18
If a woman is color-blind and her husband has normal vision, what is the expected inheritance pattern for their children regarding color blindness?
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19
Assess the following statements regarding colour blindness: 1. A colourblind individual cannot distinguish between red and green. 2. Colour blindness results from a defect in the cone cells of the retina. Which statements are accurate?
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20
Which scientist is credited with the first observation of the X-chromosome, then referred to as the 'X-body'?
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