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प्रश्न
Identify the CORRECT statement from the following.
विकल्प
Sex linked traits appear more frequently in females.
Colour blindness is caused due to proper formation of colour sensitive cells.
Human females have double dose of X chromosome.
Drone bees produce sperms by meiosis.
MCQ
उत्तर
Human females have double dose of X chromosome.
Explanation:
Sex related features are more common in males since they only have one 'X' chromosome, allowing the recessive gene to express itself. A gene abnormality causes colour blindness by preventing the appropriate
development of colour sensitive cells in the retina.
Mitosis is used by drone bees to make sperm.
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