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The following statements are about ideas, discoveries and techniques - VCE - SSCE Biology - Question 22 - 2010 - Paper 1
Question 22
The following statements are about ideas, discoveries and techniques. Idea 1. The molecular structure of DNA was revealed to be a double helix. Idea 2. Individuals... show full transcript
Worked Solution & Example Answer:The following statements are about ideas, discoveries and techniques - VCE - SSCE Biology - Question 22 - 2010 - Paper 1
Step 1
Idea 1. The molecular structure of DNA was revealed to be a double helix.
Answer
This idea refers to the discovery made by James Watson and Francis Crick in 1953, which identified the structure of DNA as a double helix. This is foundational in genetics and precedes the understanding of evolution.
Step 2
Idea 3. Comparing the similarities of nucleotide sequences in different organisms helps determine how closely related the organisms are to each other.
Answer
This idea represents advancements in molecular biology that came after the DNA structure revelation. The comparison of nucleotide sequences became important in understanding genetic relationships among species.
Step 3
Idea 2. Individuals best suited to the environment have the best chance of surviving and reproducing.
Answer
This concept is integral to Darwin's theory of natural selection, which explains how evolution operates over time. This idea correlates with the understanding gained from ideas 1 and 3.
Step 4
Idea 4. Organisms can alter their structure to suit their environment and then they are able to pass this favourable alteration onto their offspring.
Answer
This idea reflects the principle of adaptation and inheritance, building upon ideas of evolution as understood through natural selection.