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

Why aquatic animals can afford to be ammonotelic?

What is Red Data Book?

Name the enzyme and state its property that is responsible for continuous and discontinuous replication of the two strands of a DNA molecule

Which of the following is a chemical transmitter in the synapse of neurons?

Vermiform appendix is an example of __________ organ.

(A) vestigeal

(B) homologous

(C) sense

(D) analogous

The phenomenon of industrial melanism demonstrates__________

(a) natural selection

(b) induced mutations

(c) reproductive isolation

(d) geographical isolation

Define Eutrophication.

By which process ammonia is converted into urea in liver?

Select and write the most appropriate answer from the given.

Identify the type of isolation where the members of two populations have different mating behaviour which prevents interbreeding: 

Select and write the most appropriate answer from the given. 
Which stage in the life cycle of silk moth secretes silk? 

Multiple choice question.

Insect pollinated flowers usually posses ______

Multiple choice question.

Insect pollinated flowers usually posses ______

Multiple choice question.

In ovule, meiosis occurs in ______

Multiple choice question.

In ovule, meiosis occurs in ______

Multiple choice question.

The ploidy level is not the same in ______.

Multiple choice question.

The ploidy level is not the same in ______.

Which of the following types require pollinator but the result is genetically similar to autogamy?

Which of the following types require pollinator but the result is genetically similar to autogamy?

If diploid chromosome number in a flowering plant is 12, then which one of the following will have 6 chromosomes?

If diploid chromosome number in a flowering plant is 12, then which one of the following will have 6 chromosomes?