DNA & PROTEIN SYNTHESIS
The molecule that carries genetic information in cells.
DNA
The observable traits of an organism.
phenotype
The male gamete.
sperm
The basic unit of the nervous system.
neuron
The bending of a plant toward light.
phototropism
The process where DNA makes an exact copy of itself
DNA Replication
An organism that has two identical alleles for a trait is described as this.
homozygous
The structure where fertilisation usually occurs.
the fallopian tube (oviduct)
The part of the brain responsible for balance and coordination.
the cerebellum
Growth in response to gravity.
geotropism (gravitropism)
The molecule that carries genetic instructions from the nucleus to the ribosome.
mRNA
The law stating that allele pairs separate during gamete formation.
Law of Segregation
The hormone responsible for maintaining the uterine lining during pregnancy.
progesterone
The hormone released during the “fight or flight” response.
Adrenaline
The plant hormone responsible for elongation of cells.
auxin
The sequence of three bases on mRNA that codes for a specific amino acid.
codon
A cross involving two different traits.
a dihybrid cross
The process by which the embryo implants into the uterine wall.
implantation
The gland known as the “master gland.”
the pituitary gland
The rapid, non-growth movement in plants (e.g., closing of Venus flytrap).
nastic movement
The process by which mRNA is used to assemble amino acids into a protein.
translation
The inheritance pattern where both alleles are equally expressed (e.g., AB blood group).
codominance
The stage when the three germ layers form.
gastrulation
The process by which the body maintains a stable internal environment.
homeostasis
The structure that detects environmental stimuli in animals.
receptor