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

Acid rain, What direct or indirect effect is acid rain thought to have on m...

What direct or indirect effect is acid rain thought to have on mama''s and forest and buildings

What is an example of evolutionary novelty, Compared to amphibians what is ...

Compared to amphibians what is an example of evolutionary novelty present in beings of the class Reptilia against the loss of water through the skin? The reptile skin is kerat

What are some examples of biological activities, Q. What are some examples ...

Q. What are some examples of biological activities in which osmosis plays an significant role? Hemolysis destruction of red blood cells by entrance of water, the hydric regulat

Explain some advantages of most probable number, Explain some Advantages of...

Explain some Advantages of Most Probable Number? 1. It is simple and method of choice for determining fecal coliform densities. 2. Results of different laboratories are comp

How much fats should be taken for management of obesity, How much Fats shou...

How much Fats should be taken for management of obesity? Fats, being a concentrated source of energy need to be restricted. Excess dietary fat promotes much more weight gain th

What are the two divisions of the angiosperms, What are the two divisions o...

What are the two divisions of the angiosperms? The angiosperms are separated into monocotyledonous and dicotyledonous. (These categories are defined later in this text.) Pla

Define phosphorous distribution in plasma, Define Phosphorous distribution ...

Define Phosphorous distribution in plasma? In plasma, phosphorus is distributed in different forms. Figure: Phosphorous distribution in plasma Inorg

What is starch , Starch exists in plants as insoluble starch granules in c...

Starch exists in plants as insoluble starch granules in chloroplasts.  Each starch granule   holds   a   combination   of   two   polysaccharide    forms, amylopectin and amylose.

Explain about proximal chromosome, Do phylogenetically proximal species ha...

Do phylogenetically proximal species have cells with proximal chromosome counts? The number of chromosomes typical of every species is proximal for phylogenetically proximal sp

Amine and the carboxyl groups, Q. Do the amine and the carboxyl groups atta...

Q. Do the amine and the carboxyl groups attached to central carbons participate in the union between amino acids? Yes. The nitrogen of the amine group of one amino acid binds t

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