Photo AI
The theory of evolution by natural selection was first described by A) Gregor Mendel - NSC Life Sciences - Question 1 - 2016 - Paper 2
Question 1
The theory of evolution by natural selection was first described by A) Gregor Mendel. B) Watson and Crick. C) Jean Baptiste de Lamarck. D) Charles Darwin.
Worked Solution & Example Answer:The theory of evolution by natural selection was first described by A) Gregor Mendel - NSC Life Sciences - Question 1 - 2016 - Paper 2
Step 1
When an individual that is homozygous dominant for a particular characteristic is crossed with an individual that is homozygous recessive for the characteristic, all the offspring would be ...
Answer
All the offspring would be heterozygous dominant. This is due to the fact that the homozygous dominant parent can only contribute dominant alleles, while the homozygous recessive parent can only contribute recessive alleles, resulting in offspring with one dominant and one recessive allele (heterozygous).
Step 2
Step 3
A hummingbird's long beak is believed to help it feed on the nectar in flowers. The reason that Lamarck would have provided for the long beak of the hummingbird is that ...
Answer
Lamarck would have suggested that the long beak of the hummingbird evolved because its ancestors stretched their beaks to reach nectar in deeper flowers, and this acquired trait was then passed down to subsequent generations.
Step 4