12th Class Fsc Biology Online Preparation for chapter 22 (Variation and Genetics)

Online Short Questions For Chapter 8 "12th Class Biology Chapter 22 Short Questions Preparation "

Try The Short Questions For 12th Class Biology Chapter 22 Short Questions Preparation

  • Total Questions10

  • Available Sets6

Start Test Download PDF

Biology - 12th Class Biology Chapter 22 Short Questions Preparation

Question # 1

What is test cross? Give its significance?

  • Ans 1: Test cross is a cross used to test the genotype of an organism showing dominant phenotype.
    Significance of test cross is that we can know the genotype of an organism
Submit

Prepare Complete Set Wise Questions For Chapter 8 "12th Class Biology Chapter 22 Short Questions Preparation "

12th Class Biology Chapter 22 Short Questions Preparation - Set 1

Question # 1

What is test cross? Give its significance?

  • Ans 1: Test cross is a cross used to test the genotype of an organism showing dominant phenotype.
    Significance of test cross is that we can know the genotype of an organism
Submit

12th Class Biology Chapter 22 Short Questions Preparation - Set 2

Question # 1

How sex is determined in yeast?

  • Ans 1: Sex determination in yeast depends upon genic system.In this system the sexes are determined by simple allelic difference at a small number of gene loci e.g,a and a are the two mating types or sexes of yeast controlled by MAT a and MAT.a alleles respectively.
Submit

12th Class Biology Chapter 22 Short Questions Preparation - Set 3

Question # 1

What is the product rule?

  • Ans 1: When two independent events are occurring simultaneously like in dihybrid cross,the ratio of each joint phenotypic combination can be obtained by multiplying the probabilities of individual phenotypes. It is called product rule.
Submit

12th Class Biology Chapter 22 Short Questions Preparation - Set 4

Question # 1

What is test cross? Give its significance?

  • Ans 1: Test cross is a cross used to test the genotype of an organism showing dominant phenotype.
    Significance of test cross is that we can know the genotype of an organism
Submit

12th Class Biology Chapter 22 Short Questions Preparation - Set 5

Question # 1

What is type II diabetes or NIDDM?

  • Ans 1: Type II diabetes or NIDDM.It account for 90% of all diabetic patients.These person produce some endogenous insulin themselves,but their body cells fail to respond to insulin and cannot take up glucose from body.They develop some sort of insulin resistance.
Submit

12th Class Biology Chapter 22 Short Questions Preparation - Set 6

Question # 1

Define pleiotropy. Give two examples.

  • Ans 1: When a gene more than one trait it is called pleiotropy. For example gene for eye colour in Drosophila also controls shape of spermathecae.
Submit

ic-science-white
Biology
22th Chapter

12th Class Biology Chapter 22 Short Questions

Here you can prepare 12th Class Biology Chapter 22 (Variation and Genetics). Click the button for 100% free full practice.

Start Chapter 22 Preparation

Is this page helpful?