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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 discovery, made by James Watson and Francis Crick in 1953, was pivotal in the field of genetics as it elucidated the structure of the DNA molecule, which is essential for understanding how genetic information is stored and transmitted.
Step 2
Idea 2. Individuals best suited to the environment have the best chance of surviving and reproducing.
Answer
This concept is fundamental to Charles Darwin's theory of natural selection. The individuals that possess favorable traits are more likely to survive and reproduce, passing these traits on to the next generation.
Step 3
Idea 3. Comparing the similarities of nucleotide sequences in different organisms helps determine how closely related the organisms are to each other.
Answer
This technique is vital in molecular phylogenetics, allowing scientists to assess genetic relationships and evolutionary history among species by analyzing their DNA sequences.
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 is a concept related to Lamarckian evolution, where acquired characteristics can be passed on. However, it is more accurate to say that genetic mutations and natural selection lead to favorable adaptations over generations.
Step 5