Genetics
What are genes?
Segments of DNA
Charles Darwin
What is the process by which plants make their own food using sunlight.
Photosynthesis
How long has Miss Tran been teaching for?
A heterozygous brown-eyed woman has a child with a blue-eyed man.
Brown eyes are dominant over blue eyes. Use the letter 'b'
What is the probability that their child will have blue eyes?
Probability of blue-eyed child (bb) = 2 out of 4 = 50%.
What are different types of genes called?
Alleles
What are the four types of evolution?
Taylor Swift’s fans are known by this name.
Swifties
What is Miss Tran's favourite football team?
Liverpool
Having freckles is dominant over no freckles.
Two heterozygous parents have children. What probability of their children are likely to have no freckles?
Probability of no freckles = 1 out of 4 = 25%.
What is a nucleotide made of?
Nitrogenous base, phosphate, sugar
What are the four different mechanisms of evolution?
gene flow, genetic drift, mutations, natural selection
This movie features a talking snowman named Olaf.
Frozen
Is Miss Tran the older or younger sibling?
Younger
The ability to roll the tongue is dominant over not being able to roll the tongue.
A homozygous non-roller marries a heterozygous roller. What percentage of their children can roll their tongue?
50% of their children can roll their tongue.
What is the definition of heterozygous and homozygous?
Heterozygous refers to two different alleles for the same trait (Aa)
Homozygous refers to two of the same alleles for the same trait (AA or aa)
Contrast allopatric and sympatric speciation
Allopatric speciation occurs when populations are geographically separated and evolve into different species.
Sympatric speciation, organisms become reproductively isolated and diverge into new species without any physical separation
The human body’s largest organ.
Skin
How many rings am I wearing?
4
Colour blindness is an X-linked recessive trait.
A carrier woman has a child with a man who has normal vision. What is the probability of a colour-blind son? Use any letter
50% chance that a son will be colour-blind
What type of inheritance does this pedigree show?
Autosomal recessive
How do homologous structures provide evidence for evolution?
Homologous structures are body parts with a similar structure but different functions, showing that species share a common ancestor.
These similarities suggest that the organisms have evolved differently over time to adapt to their environments.
This line divides the Earth into the Northern and Southern Hemispheres.
The equator
What is Miss Tran's birthdate
25 March
Haemophilia is an X-linked recessive disorder. An unaffected woman has a child with a haemophilic man. What will their daughters be in terms of genotype?
All daughters will be carriers they won’t have haemophilia, but they carry the gene.