Human Genome/ DNA

Total Questions: 8

1 - Organisms encode their genes in long strands of-----:

A ) DNA ✅
B ) CNA
C ) Chromosomes
D ) Carbohydrates

3 - From which organism was DNA polymerase discovered in 1956?

A ) E. Coli ✅
B ) Yeast
C ) Human
D ) Mouse

4 - سینٹروسوم کا کام---- بنانا ہے

A ) کروموسوم
B ) سپنڈل ✅
C ) سیل وال
D ) نیوکلیس

5 - How many chromosomes does people normally have?

A ) 20 pairs
B ) 23 pairs ✅
C ) 40 pairs
D ) 50 pairs

6 - What is the basic unit of DNA?

A ) Amino acid
B ) Fatty acid
C ) Protein
D ) Nucleotide ✅

7 - Which enzyme is responsible for synthesizing DNA strands during replication?

A ) DNA polymerase ✅
B ) RNA polymerase
C ) DNA ligase
D ) Helicase

8 - Formation of RNA from DNA is called----?

A ) Translation
B ) Transfusion
C ) Transcription ✅
D ) DNA replication

Explanation:

Formation of RNA from DNA is called 👉 Transcription.

✅ Transcription is the biological process in which RNA is synthesized from a DNA template using the enzyme RNA polymerase.

📌 Key Points:

  • ✅ Occurs in the nucleus (in eukaryotes)
  • ✅ Involves mRNA, tRNA, or rRNA
  • ✅ Enzyme involved: RNA polymerase
  • ✅ First step in gene expression.