12 Class Fsc Part 2 Short Questions Online Preparation of biology chapter 20 (Chromosoms and DNA)

Online Short Questions For Chapter 6 "12th Class Biology Chapter 20 Short Questions Preparation "

Try The Short Questions For 12th Class Biology Chapter 20 Short Questions Preparation

  • Total Questions10

  • Available Sets6

Start Test Download PDF

Biology - 12th Class Biology Chapter 20 Short Questions Preparation

Question # 1

What is translation? Or Define translation.

  • Ans 1: Synthesis of protein from the mRNA is called translation.It is second step of central dogma.
Submit

Prepare Complete Set Wise Questions For Chapter 6 "12th Class Biology Chapter 20 Short Questions Preparation "

12th Class Biology Chapter 20 Short Questions Preparation - Set 1

Question # 1

What is translation? Or Define translation.

  • Ans 1: Synthesis of protein from the mRNA is called translation.It is second step of central dogma.
Submit

12th Class Biology Chapter 20 Short Questions Preparation - Set 2

Question # 1

Define genetic code.Give its properties.

  • Ans 1: Genetic code is combination of three nucleotides,which specify a particular amino acid.
  • Ans 2: Properties of genetic code are:
    i) Genetic code is universal ii) Genetic code is coma less iii) Genetic cod is triplet.
Submit

12th Class Biology Chapter 20 Short Questions Preparation - Set 3

Question # 1

Compare telocentric and acrocentric chromosomes.

  • Ans 1: Telocentric Chromosomes:Telocentric has centromere at one end and chromatid part is present at other end.
  • Ans 2: Acrocentric Chromosomes: Acrocentric has two unequal arms one is short and other is long.
Submit

12th Class Biology Chapter 20 Short Questions Preparation - Set 4

Question # 1

Differentiate between semi conservative replication and conservative replication.

  • Ans 1: Semi Conservative Replication: The two strands of double helix of DNA separate out acting as a model or template,along which new nucleotide are arranged thus giving rise to two new DNA duplexes.
  • Ans 2: Conservative Replication: This model states that the parental double helix would remain intact and generate DNA copies consisting of entirely new molecule.
Submit

12th Class Biology Chapter 20 Short Questions Preparation - Set 5

Question # 1

What is central Dogma? Give its two steps.

  • Ans 1: All organisms use the same basic mechanism of reading and expressing the genes,which is often referred to as central dogma.First step of central dogma is transcription and second step is translation (synthesis of protein from mRNA).
Submit

12th Class Biology Chapter 20 Short Questions Preparation - Set 6

Question # 1

What is mutation? Give its name of two classes.

  • Ans 1: Changes in the DNA occur either due to mistake in replication or damage to the genetic message is known as mutations. its classes are:
    1- Point mutations 2- Chromosomal aberrations.
Submit

ic-science-white
Biology
20th Chapter

12th Class Biology Chapter 20 Short Questions

Here you can prepare 12th Class Biology Chapter 20 (Chromosoms and DNA). Click the button for 100% free full practice.

Start Chapter 20 Preparation

Is this page helpful?