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NCERT Class 12 Biology Solutions: Chapter 6 – Molecular Basis of Inheritance

Group the following as nitrogenous bases and nucleosides

Adenine, Cytidine, Thymine, Guanosine, Uracil, and Cytosine.

Solution: Nitrogenous bases present in the list are adenine, thymine, uracil, and cytosine.  Nucleosides present in the list are cytidine and guanosine.

If a double-stranded DNA has 20 percent of cytosine, calculate the percent of adenine in the DNA.

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NCERT Class 12 Biology Solutions: Chapter 5 – Principles of Inheritance and Variation

Mention the advantages of selecting a pea plant for the experiment by Mendel.

Solution: Mendel selected pea plants to carry out his study on the inheritance of characters from parents to offspring.  He selected a pea plant for the following features:

  • Pea plant has many visible contrasting characters such as tall/dwarf plants, purple/white flowers, etc.
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NCERT Class 12 Biology Solutions: Chapter 4 – Reproductive Health

What do you think is the significance of reproductive health in a society?

Solution: Reproductive health is the total well-being in all aspects of reproduction. It includes physical, emotional, behavioral, and social well-being. AIDS, gonorrhea, etc. are sexually transmitted diseases transferred from one individual to another through sexual contact.

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Class 12 Maths NCERT solutions

Students preparing for various competitive exam often dive directly into the subject without having a look at the syllabus first. A deep understanding of the syllabus can help with familiarizing the subject, understanding its depth, difficulty level and so on. Hence, the first step in your preparation process is to have a deep understanding of the syllabus. 

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Class 11 Physics NCERT solutions

We see students struggling with the endless syllabus while preparing for an entrance exam. Since not knowing where to focus on has become a serious issue we’ve decided to save you from that hassle. In this article, you will find Class 11 physics handwritten notes as downloadable PDFs, these high-quality NCERT handwritten notes for Class 11 Physics are from HashLearn teachers.

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