Download App

Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYMolecular Basis of Inheritance5 Marks
Question
DNA.
✓

Answer

  1. DNA regulates and controls all the cellular activities.
  2. It replicates and gets distributed equally to the daughter cells when the cell divides.
  3. It is a carrier of genetic information.
  4. Heterocatalytic function : DNA directs the synthesis of chemical molecules other than itself. E.g. Synthesis of RNA (transcription), synthesis of protein (Translation), etc.
  5. Autocatalytic function : DNA directs the synthesis of DNA itself. E.g. Replication.
  6. DNA is a master molecule of a cell that initiates, guides, regulates and controls the process of protein synthesis.

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 "Answer the following questions in detail." from Molecular Basis of Inheritance→Molecular Basis of Inheritance — all question types→BIOLOGY STD 12 Science question papers→Maharashtra Board STD 12 Science question papers→Maharashtra Board question paper generator→

Similar questions

Only 20 amino acids are considered as standard.
→
Describe different ways in which epithelial surface offers the innate immunity.
→
Some parents wrote a complaint letter to the local municipality to remove all the hoardings in the city, advertising the use of condoms and matters relating to AIDS prevention. The children of these parents came to know about the matter and raised their voice against removal of the hoardings. The parents were convinced by the awareness level of their children and withdrew the complaint.
  1. Parents considered the hoarding as inappropriate. Do you agree/ disagree with their view?
  2. What are the methods by which AIDS spreads?
  3. What is AIDS?
  4. What values are promoted by the children protesting against their parents?
→
  1. Name the nuclei that fuse to form PEN.
  2. What is the ploidy of PEN?
  3. Explain the development of endosperm from PEN?
→
Discuss the causes and effects of global warming. What measures need to be taken to control global warming?
→
In what way anaerobic sludge diagestion is important in sewage treatments?
→
Fall and rise in blood calcium stimulates secretion of parathyroid.
→
What is growth? What are its characteristics ?
→
“Maintenance of personal and public hygiene is necessary for prevention and control of many infectious diseases”. Justify the statement giving suitable examples.
→
  1. Identify the structure shown above.
  2. Redraw the structure as a replicating fork and label the parts.
  3. Write the source of energy for this replication and list the enzymes involved in this process.
  4. Mention the difference in the synthesis based on the polarity of the two template strands.
→