HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions for Biology

Give reason – ‘Archaeopteryx is called connecting link between reptiles and birds’.

Give the symptoms of typhoid fever and draw a labelled diagram of its causal organism.

With the help of suitable diagrams, explain how the age structures determine the trend of population.

What is the common name of Apis mellifera?

Which growth hormone is used to enhance dairy productivity?

Name of two classes to which Archaeopteryx acts as connecting link.

Define the term natality.

Give the economic importance of lac.

Hot spot method of in situ conservation protects ___________ species in its own habitat.

Name the viral diseases in poultry animals

Explain the technique of multiple ovulation embryo transfer (MOET) in animal breeding.

Describe the structure of a nucleosome.

Name the causative organism and preventive measures for Typhoid

______ is an exotic breed of cow

(A) Gir

(B) Sindhi

(C) Sahiwal

(D) Jersy

State the economic importance of lac culture.

Define apiculture. Name the products obtained from it.

In an octamer of the nucleosome, core DNA consists of ______ base pairs.

Attempt any TWO of the following: 

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

Name the type of animal breeding carried out to produce amule.