HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Important Questions for Biology

Answer the following question in ‘One’ sentence only:

Enlist the histones which form an octamer of nucleosome.

Attempt any TWO of the following:

Define the terms ‘codon’ and ‘anticodon’. 

Attempt any TWO of the following: 

With the help of a suitable example illustrate ‘Palindrome’. 

Sketch and label the ‘clover leaf model’ of t-RNA.

Short Answer Question:

Write a note on Human genome project (HGP).

Find the odd one out:

What happened when heat-killed S-cells along with living R-cells were injected into mice?

Semiconservative mechanism of DNA was detected using:

What is the role of Mg⁺⁺ in Translation?

Enlist the names of enzymes used in semiconservative replication of DNA?

Differentiate between Heterochromatin & Euchromatin.

Draw a neat and labelled diagram of the Nucleosome.

Draw neat and labelled diagram of Replication Fork.

Draw a neat and labelled diagram of transcription and processing of hn-RNA

How Meselson and Stahl explained the concept of Semiconservative Replication of DNA experimentally?

Histones are rich in ______.

During the replication of DNA, the separated strands are prevented from recoiling by using ______.

Write the aims of the human genome project.

The nucleic acid synthesis takes place in ______.

Describe the process of transcription.