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

Difference between algae and protozoans, Q. What is the fundamental differe...

Q. What is the fundamental difference between algae and protozoans? The basic difference between algae and protozoans is the fact that algae are photosynthetic autotrophs while

Describe consciousness as the waking state, Q. Describe Consciousness as th...

Q. Describe Consciousness as the waking state? Consciousness as the waking state: consciousness is also referred to as the waking state as opposed for example to sleep. All

What herniation of a disc means, A woman was injured several years ago in a...

A woman was injured several years ago in a car accident and she was diagnosed with a herniated disc. Can you please explain using the correct anatomical terminology what herniation

Explain barrier techniques - protective clothing, Q. Explain Barrier techni...

Q. Explain Barrier techniques - Protective clothing? Protective outerwear is worn to reduce exposure to debris in spatter. Clinic jackets should have long sleeves, a high neck,

Class of coclentrata, ????? # 100 ??????????? #Minimum ?????? ?????

????? # 100 ??????????? #Minimum ?????? ?????

Explain the atp-sensitive potassium channel, ATP-sensitive potassium channe...

ATP-sensitive potassium channel?   A.  In smooth muscle cells surrounding an arteriole serving a region of the body that has just recently had very high levels of cellular acti

Determine the signs and symptoms of bulimia, Determine the Signs and Sympto...

Determine the Signs and Symptoms of Bulimia? 1. Binges, minimum twice a week for three months 2. Purging a Menstrual irregularities 3. Swollen glands Frequent fluct

How can the formation of egg cells from germ cells, Indicating the name and...

Indicating the name and respective ploidy of each involved cell how can the formation of egg cells from germ cells be described? The formation of egg cells starts with a germ c

Environmental acts and regulations, The environmental pollution has become ...

The environmental pollution has become a biggest threat  to humanity. To over-come this problem a suitable preventive legislation is need of hour. The problems of acid rain ,ozone

Effects of long term malnutrition on children, Effects of long term malnutr...

Effects of long term malnutrition on children The effects of long time malnutrition are more severe in children. Unlike adults children do not have sufficient amounts of c

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