Q8. What is meant by the term ‘species’? Discuss its meaning in higher plants and animals and in bacteria.
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Multiple Choice Question
Which form of DNA is characterized by a left-handed double helical structure?डीएनए (DNA) के किस रूप की विशेषता एक वामावर्त (left-handed) डबल हेलिक्स संरचना है?
Explanation:
Z-DNA is a left-handed double helix, unlike the standard B-DNA and A-DNA which are right-handed. It typically occurs in regions with alternating purine-pyrimidine sequences.
Z-डीएनए एक वामावर्त (left-handed) डबल हेलिक्स है, जबकि मानक B-डीएनए और A-डीएनए दक्षिणावर्त (right-handed) होते हैं। यह आमतौर पर प्यूरीन-पिरिमिडीन अनुक्रमों वाले क्षेत्रों में होता है।
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This question belongs to the set "Biology Practice Test 6 – Unit 2 (Biochemistry & Molecular Biology – SET 2/4)". Click below to read detailed notes and attempt the full quiz.
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