Download App

STD 12 - 4. principal of inheritance and variation — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - 4. principal of inheritance and variation4 Marks
MCQ
Sometimes chromosome number increase or decrease due to
  • ✓
    Non-disjunction of chromosome
  • B
    Genetic repete
  • C
    Mutation
  • D
    All of these
✓

Answer

Correct option: A.
Non-disjunction of chromosome
a
It's Obvious

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

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Echinodermata is a group of animals which are
→
Chose the correct pair :
→
Select the incorrect statements
A. Tetrad formation is seen during leptotene
B. During Anaphase, the centromere split and chromatids separate.
C. Terminalization takes place during Pachytene.
D. Nucleolus, Golgi complex and ER are reformed during Telophase.
E. Crossing over takes place between non sister chromatids of homologous
Choose the correct answer from the option given below:
→
Which one of the following statements about morula in humans is correct?
→
The fore limbs are modified into wings in
→
In which phylum is water vascular system found
→
In cockroach, the testes are present in
→
In the evolution of animals a heart to pump the blood is found for the first time in
→
When a neuron is stimulated to generate nerve impulse, the electrical potential on the inside of the nerve membrane changes
→
Nutrition is sponges is
→