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Saroj arora
Poll
Saroj arora
Asked: December 1, 2021In: Class 10 Science

Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?

Gold (Ag) and copper (Cu) obtained after extraction are in impure form. So, metals like gold and copper are refined by electrolytic refining. Other than gold and copper, electrolytic refining is used for metals such as Zn and Ag. Sodium ...

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Keshav Rai
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Keshav Rai
Asked: October 26, 2021In: Class 12 Biology

Lysine and tryptophan are:

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Mulchand
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Mulchand
Asked: October 26, 2021In: Class 12 Biology

An explant is:

Class 12 Science Biology Important MCQ Solutions Class 12 Science Biology Terminal Exams MCQ Solutions Class 12th Biology NCERT Based MCQ Questions Answers Class 12 Biology Chapter-9 Strategies for Enhancement in Food Production MCQ

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Dhanush jha
Poll
Dhanush jha
Asked: October 26, 2021In: Class 12 Biology

The term ‘totipotency’ refers to the capacity of a:

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Chander
Poll
Chander
Asked: October 26, 2021In: Class 12 Biology

Use of certain chemicals and radiation to change the base sequences of genes of crop plants is termed:

Class 12 Biology Chapter-9 Strategies for Enhancement in Food Production MCQ Class 12 Science Biology Important MCQ Questions 12th Science Biology Extra MCQ Questions Answers Class 12th Science Session 2021-2022 12th Biology NCERT Syllabus MCQ Questions

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Hari Harun
Poll
Hari Harun
Asked: October 26, 2021In: Class 12 Biology

Which one of the following combination would a sugarcane farmer look for in the sugarcane crop?

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Hari Harun
Poll
Hari Harun
Asked: October 26, 2021In: Class 12 Biology

In virus-infected plants the meristematic tissues in both apical and axillary buds are free of virus because:

Class 12th Biology NCERT Based MCQ Questions Answers Class 12 Science Biology Important MCQ Solutions Class 12 Biology Chapter-9 Strategies for Enhancement in Food Production MCQ 12th Biology Terminal Exam Based MCQ Extra Questions

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Banwari Lal
Banwari Lal
Asked: October 8, 2021In: Class 12 Biology

PCR is a useful tool for early diagnosis of an infectious disease. Comment.

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Jay Chand
Jay Chand
Asked: October 8, 2021In: Class 12 Biology

Many proteins are secreted in their inactive form. This is also true of many toxic proteins produced by micro organisms. Explain how the mechanism is useful for the organism producing the toxin?

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