Vedclass
Class 12BiologyPrinciples of Inheritance and VariationPedigree Analysis and Mendelian disorders
Medium

Why are some genetic disorders not eliminated from the gene pool despite being harmful?

  • A
    They possess future survival advantages.
  • B
    They remain recessive and are carried by heterozygotes.
  • C
    They are dominant and appear frequently.
  • D
    Genetic drift occurs due to small population size.
Share

Explore More

Browse All

Question Bank

12

All Subjects

Class 12 Questions

Class 12

Biology Questions

Chapter

Principles of Inheritance and Variation

Subtopic

Pedigree Analysis and Mendelian disorders

Similar Questions

Both husband and wife have normal vision,though their fathers were colourblind and mothers did not have any gene for colour blindness. The probability of their daughter becoming colourblind is

Medium
View Solution

$A$ normal-visioned woman, whose father is colour-blind, marries a normal-visioned man. What would be the probability of her sons and daughters being colour-blind? Explain with the help of a pedigree chart.

Medium
View Solution

Phenylketonuria is a genetic disorder due to a defect in the metabolism of which of the following?

Medium
View Solution

Which of the following disorders is not hereditary?

Medium
View Solution

What type of disorder is hemophilia?

Medium
View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo