Download App

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

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYPrinciples of Inheritance and Variation3 Marks
Question
State Mendel’s principle of segregation.
✓

Answer

Law of segregation: This law states that the factors or alleles of a pair segregate from each other during gamete formation, such that a gamete receives only one of the two factors. They do not show any blending.
Results of a dihybrid cross where the two parents differed in two pairs of contrasting traits: seed colour and seed shape.

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 "3 Marks Question" from Principles of Inheritance and Variation→Principles of Inheritance and Variation — all question types→BIOLOGY STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

This sludge can be used as an inoculum or as a source of biogas. Explain.
→
Reptiles and frogs are oviparous animals; yet they differ in certain aspects of reproduction. Bring out the differences and mention which of the two animals has more survival advantage.
→
What are exotic species? Explain with the help of two examples how the exotic species disturb the native species of an ecosystem?
→
Classify the following into types of barriers in innate immunity:
  1. Neutrophils
  2. Acid in Stomach
  3. Interferons
  4. Mucus
  5. Monocytes
  6. Tears
  7. Saliva
→
What do you call the layer of cells forming the outer wall of the blastocyst?
→
What is the name of network formed by the fusion of open ends of seminiferous tubules? Where does this network lead to?
→
  1. What is an ‘allergic reaction’?
  2. Name any two drugs used to quickly reduce the symptoms of allergy.
  3. Why do more and more children in metro cities of India suffer from allergies and asthma?
→
  1. Name the respective forms in which the malarial parasite gains entry into
  1. Human body
  2. Body of female Anopheles
  1. Name the hosts where the sexual and the asexual reproductions of malarial parasite occur respectively.
  2. Name the toxin responsible for the appearance of symptoms of malaria in humans. Why do these symptoms occur periodically?
→
How has the study of biotechnology helped in developing pest-resistant cotton crop? Explain.
→
"Post-industrialization, the population of melanised moth increased in England at the expense of white-winged moths." Provide explanations.
→