Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Principles of Inheritance and Variation question

2013 · Q67
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Biology
  4. /Principles of Inheritance and Variation
  5. /2013 · Q67

Principles of Inheritance and Variation question

2013 · Q67

NEETBiologyPrinciples of Inheritance and VariationMCQ+4 / −1
If both parents are carriers for thalessemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child ?
  1. A
    100%
  2. B
    25%
  3. C
    no chance
  4. D
    50%
View written solutionFree

Correct answer: B

Genotype of carrier parents is – Aa (male parent) × Aa (female parent)

NEET 2013 Biology - Principles of Inheritance and Variation Question 144 English Explanation
AA → normal child (25%)
Aa → carriers child (50%)
aa → affected child (25%)

PreviousNext

More from Principles of Inheritance and Variation

  • Which one of the following is a wrong statement regarding mutations ?2012 · MCQ
  • Represented below is the inheritance pattern of the certain type of traits in humans. Which one of the following conditions could be an example of this pattern ? Includes diagram2012 · MCQ
  • A test cross is carried out to :2012 · MCQ
  • A normal - visioned man whose father was colour bilind, marries a woman whose father was also colour - blind. They have their first child as a daughter. What are the chances that this child would be colour blind2012 · MCQ
  • F2 generation in a Mendelian cross showed that both genotypic and phenotypic ratios are same as 1 : 2 : 1. It represents a case of2012 · MCQ
  • Test cross in plants or in Drosophila involves crossing :2011 · MCQ
  • Which one of the following conditions of the zygotic cell would lead to the birth of a normal human female child ?2011 · MCQ
  • Mutations can be induced with :2011 · MCQ