FBISE, NCP & NBF-aligned resources for Classes 9–12
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Biology Chapter 2 : Test Yourself
1 / 10
Which of the following is major bio-element?
Reasoning: Phosphorus is a major bio-element required in large amounts for DNA, RNA, ATP, and cell membranes. Sodium, magnesium, and iron are generally considered minor or trace elements.
2 / 10
Peptide bond is formed between two:
Reasoning: A peptide bond forms when the amino group of one amino acid reacts with the carboxyl group of another amino acid.
3 / 10
During translation, sequence of amino acids in the protein is decided on the basis of sequence of nucleotides in:
Reasoning: During translation, ribosomes read the nucleotide sequence of mRNA codons to determine the amino acid sequence of a protein.
4 / 10
Different amino acids differ from each other on the basis of their _________ group:
Reasoning: Amino acids differ from one another mainly in their side chain (R- group), which is often referred to as an alkyl group or variable side chain.
5 / 10
Both strands of DNA are held together by hydrogen bonding, double hydrogen bonds are present between:
Reasoning: Adenine (A) pairs with thymine (T) through two hydrogen bonds, while cytosine (C) pairs with guanine (G) through three hydrogen bonds.
6 / 10
Transcription takes place in the
Reasoning: In eukaryotic cells, transcription (DNA → RNA) occurs in the nucleus.
7 / 10
All the nucleotides of RNA differ from the nucleotides of DNA in having different:
Reasoning: RNA contains ribose sugar, whereas DNA contains deoxyribose sugar. The phosphate group is the same in both.
8 / 10
The diameter of DNA is uniform and is about:
Reasoning: The diameter of the DNA double helix is approximately 2 nanometers (20 Å).
9 / 10
Which disaccharide is also called transport sugar?
Reasoning: Sucrose is called the transport sugar because it is the main form in which carbohydrates are transported in plants.
10 / 10
Vitamin D belongs to:
Reasoning: Vitamin D is a fat-soluble vitamin derived from sterols and is classified with lipids.
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