- Data Structure
- Networking
- RDBMS
- Operating System
- Java
- MS Excel
- iOS
- HTML
- CSS
- Android
- Python
- C Programming
- C++
- C#
- MongoDB
- MySQL
- Javascript
- PHP
- Physics
- Chemistry
- Biology
- Mathematics
- English
- Economics
- Psychology
- Social Studies
- Fashion Studies
- Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Pure-bred pea plants A are crossed with pure-bred pea plants B. It is found that the plants which look like A do not appear in F1Â generation but re-emerge in F2Â generation. Which of the plants A and B are: (i) tall, and (ii) dwarf? Give reason for your answer.
Correct Answer: (i) Plant B is tall and (ii) Plant A is dwarf.
Explanation:
In pea plant, when pure tall pea plant (TT) is crossed with pure short (tt) plant,
F1 generation will be all Tt (tall plant).
(Pure Tall) TT x tt (Pure short)
F1 generation Tt (All tall plant)
Self-pollination Tt x Tt
F2 generation TT Tt Tt tt
During F1 generation, all the plants appeared are tall in nature (because tallness is dominant over dwarfness). But in the F2 generation, dwarfness will reappear in pure-dwarf plants (tt).
Advertisements
To Continue Learning Please Login
Login with Google