2.2 Concepts of Heredity

Heredity : Different Concepts or Principles.

1. Law of continuity of germ plasm-

(i) heredity is determined equally by the mother and the father, i.e. 50% is determined by the mother and 50% by the father,
(ii) the characteristics of grandparents and earlier ancestors exist in fixed quantities as generations progress from one to the next, these ancestral qualities decrease in their influence; for instance, they become successively 1/2, 1/4, 1/8, 1/16,1/32, and so on.

2. Law of regression- Regression refers to the discovery of opposite qualities or traits in the offspring. For instance, the birth of talented offspring to momic or subnormal parents is a case of regression.

3. Law of Mendal - The famous scientist Greger Jhon Mendel conducted many experiments upon rats and beans to study heredity.

(i) Experiments of beans- Mendel planted together an equal number of large and small beans. He found that the beans grew from these plants were large beans. Subsequently, he planted crossbred variety of beans, which gave rise to crossbred beans only. These beans were also large and pure.
(ii) Experiments on rats- Mendel conducted experiments on rats also, and for this pure pose he placed some white and black rats together. Only black rats were bom in this condition. Subsequently, he placed only crossbred rats together and these gave birth to black as well as white rats.
Ctet Coaching in Delhi

Want to know more

Please fill in the details below:



admit-card,10,Answer Key,4,answer-key,1,Child Development,39,Child Pedagogy,39,CLAT Coaching,1,CLAT Coaching Classes,1,CLAT Coaching Delhi,1,CTET,20,CTET Coaching,1,ctet coaching centre delhi,1,ctet coaching in delhi,1,ctet previous paper,1,ctet previous year solved paper,1,CTET Question Papers,1,CTET QUIZ,32,CTET-2017,1,Cut Off,5,DSSSB,58,DSSSB Coaching,6,DSSSB Exam,2,DSSSB Teachers,5,DSSSB Teachers Selection,1,Educational Psychology,5,Eligibility,1,English Grammar,3,English-Pedagogy,19,EVS Pedagogy,2,EVS-Pedagogy,6,EXAM,1,Exams,3,Featured,21,General Science-Biology,1,Guest Teachers,1,Hall Ticket,1,Hindi,3,Imp-Tips,4,job alerts,1,KVS,11,kvs online recruitment 2018,1,kvs teacher recruitment 2018,1,kvs tgt pgt recruitment 2018,1,Latest Article,6,Latest Articles,12,Latest-Articles,28,Mock test,33,MOCK TEST-DSSSB QUIZ,1,NCF,104,Notification,21,Notifications,1,PGT,2,PRT,4,Quant Notes,4,Question Paper,1,Reasoning,2,Religious-Social,1,Results,8,Revision of the Day,15,SST- Geography,12,SST-Civics and Economics,12,SST-History,27,Study Notes,38,Syllabus,18,Teachers Vacancies,2,TGT,1,Vacancy,1,
DSSSB, CTET & KVS Exam Preparation | Clear CTET: Concepts of Heredity
Concepts of Heredity
DSSSB, CTET & KVS Exam Preparation | Clear CTET
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS CONTENT IS PREMIUM Please share to unlock Copy All Code Select All Code All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy