Download App

Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYMolecular Basis of Inheritance5 Marks
Question
  1. Differentiate between repetitive and satellite DNA.
  2. How can satellite DNA be isolated? Explain.
  3. List two forensic application of this technology.
✓

Answer

  1.  

  1. Satellite DNA is separated from the genomic DNA. by density gradient centrifugation; the satellite DNA forms smaller peaks, while the genomic DNA forms a major peak.
  2.  
  1. They form very useful tools in identification of criminals.
  2. It is the basis of paternity testing, in case of disputes.

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 "Long Answer Type Questions [5M]" from Molecular Basis of Inheritance→Molecular Basis of Inheritance — all question types→BIOLOGY STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

Describe the Lamarkism in relation to organic evolution.
→
What is called addiction? Describe the effects of drug alcohol abuse.
→
State and explain with the help of a cross, the law of segregation as proposed by Mendel.
→
Malarial parasite ‘Plasmodium’ completes its life cycle in two hosts. Draw its complete life cycle and explain various stages it follows throughout its life.
→
A pregnant woman who have had amniocentesistest was advised to undergo MTP. It was diagnosed by her doctor that the embryo she is carrying has an extra barr body.
  1. Name the syndrome which is likely to be associated with the embryo.
  2. Why was she advised to undergo MTP?
  3. Do you justify the statutory ban on amniocentesis in our country Give reasons.
→
Describe the mechanism of pattern of inheritance of ABO blood groups in humans.
→
Ranjana and Shilpi had a hot argument whether or not life is still originating on the earth today. Their neighbour, Mr. Kamal Mishra, a retired professor, who happened to be listening to the girls, called them and explained the matter in detail.
  1. As a student of biology, what is your answer to the above problem? And why?
  2. Recall the experiment of Miller, which simulated the primitive atmosphere.
  1. What were the products obtained in his experiment?
  2. How was energy provided in the experiment?
  1. What would have been the energy source for origin of life on the earth?
  2. Indicate the values shown by Mr. Kamal Mishra?
→
Categorise the following plants into hydrophytes, halophytes, mesophytes and xerophytes. Give reasons for your answers.
  1. Salvinia.
  2. Opuntia.
  3. Rhizophora.
  4. Mangifera.
→
Ganga has recently been declared the national river. Discuss the implication with respect to pollution of this river.
→
Show that Darwin's natural selection is based on theoretical factual observations, with an example for each.
→