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

What are long-day plants (LDP)? Give two examples.

Explain Hardy-Weinberg's principle

Given below function performed by plant hormone. Which hormone is responsible for the given action?

Induce flowering in LDP

What is translocation of food?

Write Hardy Weinberg's equation.

Mention a product for human welfare obtained with the help of the following microbe:

Lactobacillus

Mention a product for human welfare obtained with the help of the following microbe:

Propionibacterium shermanii

Mention a product for human welfare obtained with the help of the following microbe:

Sclerotiana libertine

Alcoholic fermentation is brought about by ______.

Which one of the following is a stop codon?

(a) UAG

(b) UAC

(c) AUG

(d) UCA

Give the floral adaptations for chiropterophily.

If centromere is situated in the middle of the chromosome, it is called ________.

(a) Metacentric

(b) Acrocentric

(c) Submetacentric

(d) Telocentric

In which type of adaptation, forelimbs are modified into wings?

(a) Aquatic adaptations

(b) Volant adaptations

(c) Arboreal adaptations

(d) Cursorial adaptations

If the number of chromosomes in an endosperm cell is 27, what will be the chromosome number in the definitive nucleus?

1. 9
2. 18
3. 27
4. 36

Sketch and label 'tubular tower fermenter'.

Normal activities of the heart are regulated by ______________.

What is gene pool?

Sketch and label the ventral view of the human heart.

Define the term ‘genome’.

Sketch and label the structure of chromosome.