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Ragni

Asked: October 12, 2021In: Class 12 Biology

A mixture of fragmented DNA was electrophoresed in agarose gel. After staining the gel with ethidium bromide, no DNA bands were observed. What could be the reason?

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Madhu Mati

Asked: October 12, 2021In: Class 12 Biology

You have chosen a plasmid as vector for cloning your gene. However this vector plasmid lacks a selectable marker. How would it affect your experiment?

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Sangam

Asked: October 12, 2021In: Class 12 Biology

The restriction enzymes that are used in construction of recombinant DNA molecule are endonucleases which cut the DNA at ‘specificrecognition sequence’. What would be the disadvantage if they would not cut the DNA at specific-recognition sequence?

12th Biology NCERT Syllabus Questions 12th Biology Terminal Exam Based Extra Questions Class 12th Biology Sample paper Questions 12th Biology Science Session 2022-23

Shilpa

Asked: October 12, 2021In: Class 12 Biology

What is a broad spectrum antibiotic? Name a broad spectrum antibiotic and source organism.

Class XII Science Biology Extra Questions Class 12 Science Biology Terminal Exams Solutions Class XIIth Science Biology Solutions 12th Biology Science Session 2022-23

Hari Harun

Asked: October 12, 2021In: Class 12 Biology

How do mycorrhizal fungi help the plants harbouring them?

Class XII Science Biology Extra Questions Class XIIth Science Biology Solutions 12th Biology NCERT Syllabus Questions 12th Biology Science Session 2022-23

A mixture of fragmented DNA was electrophoresed in agarose gel. After staining the gel with ethidium bromide, no DNA bands were observed. What could be the reason?

You have chosen a plasmid as vector for cloning your gene. However this vector plasmid lacks a selectable marker. How would it affect your experiment?

The restriction enzymes that are used in construction of recombinant DNA molecule are endonucleases which cut the DNA at ‘specificrecognition sequence’. What would be the disadvantage if they would not cut the DNA at specific-recognition sequence?

What is a broad spectrum antibiotic? Name a broad spectrum antibiotic and source organism.

How do mycorrhizal fungi help the plants harbouring them?

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