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

As the base sequence present on one strand of DNA decides the base sequence of other strands; this strand is considered as ______.

Answer the following question in ‘One’ sentence only:

Define ‘mutation breeding’.

Competition and Mutualism.

Define the Stenothermal organisms.

Mule is the outcome of __________________.

What is the breed?

What is the function of an RNA primer during protein synthesis?

Which enzyme does remove supercoils from replicating DNA?

Very Short Answer Question:

Why are Okazaki fragments formed on lagging strand only?

Very Short Answer Question:

When does DNA replication takes place?

Long Answer Question:

Explain the process of DNA replication.

Multiple choice question.

Gene frequency in a population remain constant due to –

Define the Gene pool.

Define the Gene frequency.

Define Organic evolution.

Association between sea anemone and Hermit crab in gastropod shell is that of. 

Select the statement which explains the best parasitism.

Short answer question.

Write a note on Genetic drift.

Short answer question.

Draw a graph to show that natural selection leads to disruptive change.

Give one example of Interspecific competition.