Genetics
Different versions of a gene
Allele
Type of receptor that detects light
Photoreceptor
Change in a species over time due to traits that provides a selective advantage
Natural selection
Organelle involved in photosynthesis
Chloroplast
Process that takes carbon out of the atmosphere into plants
Photosynthesis
The allele that is expressed whenever it is present
Dominant
Type of receptor that detects touch
Mechanoreceptor
Type of feedback loop where the response accelerates the change
Positive
True or false, a plant cell has a cell wall
True
The part of the enzyme where the substrate fits
Active site
When there is either an extra or a missing chromosome
Aneuploidy
The time it takes to respond to a stimulus
Reaction time
A cell type that does not contain a nucleus or membrane bound organelles
Prokaryote
The control centre of the cell
Nucleus
What happens to the rate of enzyme reaction at low temperatures?
Slows down
Three copies of a chromosome
Trisomy
Organ of the ear that detects sound
Cochlea
In a pedigree, the shape representing male is
Square
The movement of water across a membrane from an area of high water to low water (following salt)
Osmosis
The effect that causes global warming where gases in the atmosphere trap heat.
Greenhouse effect
The genotype with both the dominant and recessive version of the gene. For example: Rr
Heterozygous
The area of skin supplied by one mechanoreceptor
Receptor field
Both alleles are recessive eg rr
Homozygous recessive
The point where there is no movement of water across the membrane because the salt concentration is equal on each side.
Isotonic point.
Threshold of statistical significance
<0.05