Download App

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

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYPrinciples of Inheritance and Variations2 Marks
Question
What is Idiograph and Karyograph? Explain it?
✓

Answer

The isolation and microscopic observation of chromosomes forms the basis of cytogenetics and is the primary method by which clinicians detect chromosomal abnormalities in humans. A karyotype is the number and appearance of chromosomes, and includes their length, banding pattern, and centromere position.

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 "Short Answer Type Questions [2M]" from Principles of Inheritance and Variations→Principles of Inheritance and Variations — all question types→BIOLOGY STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

All reproductive tract infections RTIs are STDs, but all STDs are not RTIs. Justify with example.
→
Write a note on fossil evidence. State the method by which age of fossils is calculated.
→
  1. List any two situations, when a medical doctor would recommend injection of preformed antibodies into the body of a patient. Name this kind of immunization and mention its advantages.
  2. Name the kind of immunity attained when instead of antibodies, weakened antigens are introduced into the body.
→


  1. Name the molecule ‘X’ synthesised by ‘i’ gene, How does this’ molecule get inactivated?
  2. Which one of the structural genes codes for β-galactosidase?
  3. When will the’ transcription of this gene stop?
→
Describe the Lactation amenorrhoea method of birth control.
→
What is the function of the two male gametes produced by each pollen grain in angiosperms?
→
List any four symptoms of Down's syndrome. What is the basis of this disorder?
→
What advantage does the sea anemone get in the sea anemone-hermit crab interaction as facultative mutualism? Give an alternative term for this kind of mutualism.
→
Given below are the events in human reproduction. Write them in correct sequential order.
Insemination, gametogenesis, fertilisation, parturition, gestation, implantation.
→
What do you mean by hotspots of bio-diversity? What are evidences for identity of hot spots? Write two Indian hotspots.###What is biodiversity hotspot? Write down the name and species diversities of two such hot spots found in India.
→