O-Level Combined Science, Biology: Genetics and Ecology module quiz (SEAB 5077/5078) quiz
14questions. Pick an answer and you'll see why right away.
Which statement correctly describes a gene?
An allele is best defined as
Mitosis produces daughter cells that are
Why is meiosis essential for sexual reproduction?
In humans, how many chromosomes are found in a normal body cell?
In pea plants, tall (T) is dominant to short (t). What is the expected ratio of phenotypes from a Tt x Tt cross?
An organism with two different alleles for a gene (for example Tt) is described as
In a food chain, where does the energy originally come from?
Roughly what proportion of energy is typically passed from one trophic level to the next?
Which process removes carbon dioxide from the atmosphere?
How does burning fossil fuels affect the atmosphere?
Which is a way of reducing human impact on the environment?
Why does the enhanced greenhouse effect lead to global warming?
Mitosis is responsible for which of the following?