Question Discussion & Solution

The correct answer is Thymine and Cytosine.

Key Points

• The pyrimidines in DNA are C & T. In RNA, U replaces T.

• Cytosine (C) formula is C₄H₅N₃O and Thymine (T) formula is C₅H₆N₂O₂.

Additional Information

• Deoxyribonucleic acid, commonly known as DNA, is the hereditary complex molecule present in humans and almost all other organisms.
• The information in DNA (double helix structure) is stored as a code made up of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T).
  • DNA has two base pairs, A-T and G-C, attached to a sugar-phosphate backbone.
• DNA is a long molecule that contains our unique genetic code.
  • It holds the instructions for making all the proteins in our bodies and the function of living things.
• In the cell nucleus, the DNA (deoxyribonucleic acid) molecule is packaged into thread-like structures called chromosomes.
  • A chromosome (microscopic structure) is made up of DNA tightly coiled many times around proteins called histones that support its structure.
  • A chromosome has two arms - a p arm (short arm) and a q arm (long arm), joined in the location of the centromere.

• Watson and Crick Proposed the Double Helix structure of DNA with the two strands connected by hydrogen bonds.

The Correct Answer is Option 1 i.e Baking powder.

• Baking powder:
  • Baking powder is a mixture of baking soda and tartaric acid .
  • Tartaric acid has been added to baking powder to neutralize the bitterness produced by sodium bicarbonate (NaHCO₃) .
• Baking soda:
  • It is commonly known as sodium bicarbonate.
  • Sodium bicarbonate is a white crystalline solid.
  • It is used in baking products like cakes, cookies etc.
• Washing Soda:
  • It is commonly known as Na2CO3 or sodium carbonate.
  • It is used in softening of hard water.
  • It is commonly used as a cleaning agent for domestic purposes.It is also used in the manufacturing of paper, soap, textiles, paints, etc.
• Vinegar:
  • Vinegar is produced from fermentation of alcohol.
  • Vinegar is the natural source for acetic acid.
  • It is widely used as a flavouring agent in most of the cuisines.

Y → Position value of Y is 25 which square of 5.

P → Position value of P is 16 which square of 4

I → Position value of I is 9 which square of 3

D → Position value of D is 4 which square of 2

Therefore, square of 1 is 1 and that corresponds to A.

The correct answer is Santosh Ahlawat.

• Santosh Ahlawat is the first woman Member of Parliament from Jhunjhunu.

Key Points

• Santosh Ahlawat is the first woman Member of Parliament from the Jhunjhunu constituency.
• She is associated with the Bharatiya Janata Party.

Additional Information

• Kamala Beniwal served as the Governor of Mizoram, Gujarat, and Tripura.
  • She is the first woman Governor of any northeastern state.
• Tara Bhandari was the deputy speaker of the Rajasthan Legislative Assembly in 1998.
  • Her constituency is Sirohi.
• Lakshmi Barupal is a Member of the Legislative Assembly Desuri constituency.

The correct answer is Outline.

Key Points

• Outline View
  • ​The Outline view shows the different levels of headings as designated by the styles applied in your document.
  • Headings are like titles in your document that explain the section of text to follow.
  • Each heading in the Outline view is indicated by symbols.
• Bold, Italic and Underline font style in MS Word
  • These commands are given in the Font group in the Home tab. 
    • Bold:
      • It allows you to Bold the text of your document
    • Italic:
      • It allows you to Italicize the text of your document
    • Underline:
      • It allows you to underline the text of your document.

Additional Information

• The basic steps to change the font of a text in a document are given below;
  • Select the text you want to modify
  • Select the Home tab and locate the Font group
  • Click the drop-down arrow next to the font style box
  • Font style menu appears
  • With a left-click select the desired font style
  • If you want to change the font to bold or italic, click the 'B' or 'I' icons on the format bar.
  •