HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions

Explain different population interactions with examples.

What is Commensalism? Explain it with a suitable example.

Define population growth. Explain different types of age pyramids.

What is population interaction? Explain the interactions in Mutualism and Competition.

Semiconservative mechanism of DNA was detected using:

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

A DNA segment has 75 cytosine and 40 thymine nucleotides. What shall be the total number of phosphates in the DNA segment?

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

What is the function of SSBP?

Define Heterochromatin.

Write full form of

1. IUCN
2. NBA

Draw neat and labelled diagram of Replication Fork.

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

Describe the process of semiconservative replication of DNA with the help of a neat and labelled diagram.

Transfer of a part of chromosome or set of genes to a non-homologous chromosome is called ________.

Name any three types of premating isolating mechanisms.

Name any three types of postmating isolating mechanisms.

What is chromosomal aberration? Give any two types of aberrations found in the population.

A population has more young individuals compared to the older individuals. What would be the status of the population after some years?

Define stenohaline species.