Explain how DNA collected from a habitat and compared with reference barcodes can reveal its biodiversity.
Tę umiejętność sprawdzają 4 zadania wzorowane na arkuszach IB z lat 2025–2026.
Researchers filter stream water and identify environmental DNA sequences. Which advantage can this offer over a visual survey? A. It proves the precise age of every organism present B. It can reveal an elusive species even when no individual is seen C. It…
Biologists filter pond water, extract DNA and compare short sequences with a reference barcode library. What can this procedure help them determine? A. Which species have left genetic material in the pond B. The age of every individual living in the pond C.…
A short standardized DNA sequence from a river-water sample is compared with a reference library. What is this use of DNA barcoding designed to determine? A. The exact age of every fish B. Which organisms will necessarily survive next winter C. Which species…
Genetic information helps explain early life and guide present-day conservation. (a) Describe RNA structure and evidence supporting an RNA-first stage of early life. (b) Describe uses of DNA-sequence analysis in biodiversity conservation. (c) Explain causes…
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