Get the 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 "

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Biology - 12th Class Biology Chapter 22 Short Questions Preparation

Question # 1

Assign the sex of the human having XO,XXX,XXY and XYY chromosomes.

Ans 1: Species XX XY XO XXY
Human Female Male Male Male
Drosophila Female Male Female Female

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

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

Question # 1

Assign the sex of the human having XO,XXX,XXY and XYY chromosomes.

Ans 1: Species XX XY XO XXY
Human Female Male Male Male
Drosophila Female Male Female Female

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

Question # 1

How sex is determined in plants?

Ans 1: Plants show a variety of sexual situations.Some species like Ginkgo are dio-ecious having plants of separate sexes.Male plants produce flower with only stamens and female plants produce flower with only carpels.Some dioecious plants have a difference of sex chromosome between the sexes.These have an X-Y system.These plants typically exhibit an X-choromosome autosome balance system for sex determination.

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

Question # 1

Differentiate between tritanopia and deutranopia.

Ans 1: Tritanopia: Tritanopia is blue colour blindness.
Ans 2: Deuteranopia: Deuteronopia is green blindness.

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

Question # 1

State Law of independent assortment.

Ans 1: When two contrasting pairs of traits are followed in the same cross,their alleles are assorted independently into gametes.

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

Question # 1

What are sex limited traits?Give an example.

Ans 1: Sex limited traits are present only in one sex due to anatomical differences.Such trait affects a structure or function of the body present in only males or only females.For example genes for milk yield in dairy cattle affect only cows.

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

Question # 1

What are sex influenced traits?Give an example.

Ans 1: Sex influencing traits occurs in both males and females but more common in one sex.It is controlled by an allele that is dominant in one sex but recessive in other.The difference in expression is due hormonal difference in two sexes.E.g, patteren baldness is sex influenced trait.

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12th Class Biology Chapter 22 Short Questions

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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 "

Biology - 12th Class Biology Chapter 22 Short Questions Preparation

Assign the sex of the human having XO,XXX,XXY and XYY chromosomes.

Differentiate between co-dominance and over dominance.

Define product rule and pseudoautosomal genes.

State Law of independent assortment.

Define crossing over.Give its importance.

What do you know about co-dominance?

What is type II diabetes or NIDDM?

Differentiate between homozygous and heterozygous.

What is law of segregation?

Compare between epistasis and poleiotropy.

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

Set 1

Set 2

Set 3

Set 4

Set 5

Set 6

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

Assign the sex of the human having XO,XXX,XXY and XYY chromosomes.

Differentiate between co-dominance and over dominance.

Define product rule and pseudoautosomal genes.

State Law of independent assortment.

Define crossing over.Give its importance.

What do you know about co-dominance?

What is type II diabetes or NIDDM?

Differentiate between homozygous and heterozygous.

What is law of segregation?

Compare between epistasis and poleiotropy.

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

How sex is determined in plants?

What is erythroblastosis foetalis?

Explain genic system for determination of sex.

Differentiate between co-dominance and over dominance.

Differentiate between population & gene pool.

What is Bombay Phenotype?

Two Normal parents have an albino child.What is the probability that their next child will also be an albino?

how can you calculate frequency between two linked genes?

Assign the sex of the human having XO,XXX,XXY and XYY chromosomes.

What is test cross?Who devised it?

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

Differentiate between tritanopia and deutranopia.

What is the product rule?

Differentiate between multiple alleles and polygenes..

Explain genic system for determination of sex.

Two Normal parents have an albino child.What is the probability that their next child will also be an albino?

What is erythroblastosis foetalis?

In bird's the female is heterogametic. How?

Differentiate between homogametic and heterogametic organism.

Differentiate between quantitative and qualitative variations.

Explain testicular feminization syndrome.

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

State Law of independent assortment.

What is heterogametic individual?Give example.

What do you known about protanopia and tritanopia?

Differentiate between multifactorial and polygenic traits.

Assign the sex of the human having XO,XXX,XXY and XYY chromosomes.

What is monochromacy?

Define linkage and give its one disadvantage.

What is Pleiotropy? Give one example.

What is haemophillia?Give its type.

What is type II diabetes or NIDDM?

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

What are sex limited traits?Give an example.

What do you know about co-dominance?

Differentiate between genotype and phenotype.

In bird's the female is heterogametic. How?

Give significance of test cross.

Define pleiotropy. Give two examples.

How does ABO incompatibility protect the developing baby against Rh-

Define polygenic Inheritance.Give example.