Chapter Questions
A Mendelian experiment consisted of breeding tall pea plants bearing violet flowers with short pea plants bearing white flowers. The progeny all bore violet flowers. but almost half of them were short. This suggests that the genetic make-up of the tall parent can be depicted as(a) TTWW(b) TTww(c) THW(d) TtWw
An example of homologous organs is(a) our arm and a dog's fore-leg.(b) our teeth and an elephant's tusks.(c) potato and runners of grass.(d) all of the above.
In evolutionary terms, we have more in common with(a) a Chinese school-boy.(b) a chimpanzee.(c) a spider.(d) a bacterium.
A study found that children with light-coloured eyes are likely to have parents with light-coloured eyes. On this basis, can we say anything about whether the light eye colour trait is dominant or recessive? Why or why not?
How are the areas of study - evolution and classification-interlinked?
Explain the terms analogous and homologous organs with examples.
Outline a project which aims to find the dominant coat colour in dogs.
Explain the importance of fossils in deciding evolutionary relationships.
What evidence do we have for the origin of life from inanimate matter?
Explain how sexual reproduction gives rise to more viable variations than asexual reproduction. How does this affect the evolution of those organisms that reproduce sexually?
How is the equal genetic contribution of male and female parents ensured in the progeny?
Only variations that confer an advantage to an individual organism will survive in a population. Do you agree with this statement? Why or why not?