Checker board (punnet''s square) method, Biology

Assignment Help:

CHECKER BOARD (PUNNET'S SQUARE) METHOD

1.         If the genotypes of the parents are known, the genotypes of their offspring can be easily predicted with the help of a chart called Punnett square.

2.         It is named by an English geneticist Reginald Crundall Punnett (1875-1967) who first used this method in 1927.

3.         Its advantage lies in minimising the errors which can creep in when listing all possible combinations of gametes.

4.         Each box of the square represents an individual offspring.

5.         First the alleles in the gametes produced by the parents are determined.

6.         Now the boxes are filled in by combining the alleles of male and female gametes, working horizontally or vertically in each row.

7.         The allele combinations in the boxes show the possible genotypes of the F1 generation. The ratios of the genotypes can then be worked out.


Related Discussions:- Checker board (punnet''s square) method

The red data book, The Red Data Book Species judged as threatened are ...

The Red Data Book Species judged as threatened are listed by various agencies as well as by some private organisations. The most cited of these lists is the Red Data Book. It

Which compounds does not contain an amine, Which of the following compounds...

Which of the following compounds does NOT contain an amine? Select one: a. Glutamine b. Acetate ion c. Urea d. Guanidinium ion e. Creatine

Panting - temperature relations in animals, Normal 0 false fa...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Type of disease identified chromosomes present in karyotype, Which type of ...

Which type of genetic disease can be identified from the visual analysis of the number of chromosomes present in a karyotype? The counting and the identification of chromosomes

Explain the reproductive system, Explain the Reproductive System? The h...

Explain the Reproductive System? The human reproductive system produces not only reproductive organs and gametes, but also sex hormones, which have far-reaching effects on huma

Define the fact that we must eat to gain the energy, Which law of thermodyn...

Which law of thermodynamics explains the fact that we must eat to gain the energy to perform the functions of life, such as breathing? a. fourth law b. first law c. second law d

Define triglycerides and atherogenesis, Triglyceride accumulation is not a ...

Triglyceride accumulation is not a feature of the atherosclerotic plaque but triglyceride-rich lipoproteins also contain cholesterol esters and it is likely that some of these are

Define body weight as a determinant of nutrient requirements, Define Body w...

Define Body weight as a determinant of nutrient requirements? Requirements are considered to be a function of body weight for individuals who are not overweight. However, for s

Heart - investigation of hypertension, The complications that occur in the ...

The complications that occur in the heart due to hypertension are left ventricular hypertrophy, diastolic dysfunction and cardiac failure. There is also associated coronary artery

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd