Download App

Principles of Inheritance and Variation — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYPrinciples of Inheritance and Variation1 Mark
MCQ
Double lines in pedigree analysis show:
  • A
    Sex unspecified
  • B
    Consanguineous marriage
  • C
    Unaffected offspring
  • D
    Normal mating
✓

Answer

  1. Consanguineous marriage

Explanation:

Consanguineous marriage is a marriage between two blood-related individuals. A double line between parents indicates consanguineous marriages (between blood relatives). It increases the chance of a birth defect.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (0.5 Marks)" from Principles of Inheritance and Variation→Principles of Inheritance and Variation — all question types→BIOLOGY STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Which of the following are a diamino and dicarboxylic amino acid?
→
In an ecosystem, the insectivorous plants are placed in
→
By which process sperms released from the seminiferous tubules?
→
Identify the $A$ to $E$ in following diagram
→
Progestasert and $LNG-20$ are
→
Assured seed set is possible even in absence of pollinators, when pollination is:
→
The production of gametes by the parents, the formation of zygotes the $F_1$ and $F_2$ plants, can be understood using
→
Which of the following had the smallest brain capacity ?
→
Haploid plants are preferred over diploids for mutation study because in haploids.
→
Mark the incorrect statement.
→