vocab Flashcards
define offspring
the products of reproduction
(children)
define trait
A characteristic
or feature
Ex: hair color, height
define variation
The differences within a trait
define reproduce
When a living thing makes more of itself
define sexual reproduction
when an egg cell and sperm cell combine to develop an offspring
define asexual reproduction
Reproduction without sperm and egg
(only one parent)
define phenotype
the way an individual physically looks for a specific trait (ph: phenotype, ph: physical
define pedigree
An organized representation
(model) of biological relationships
define chromosome
physical structures that are passed from parents to offspring in egg and sperm cells
define karyotype
a way scientists organize the chromosomes of an organism
define fertilization
The process when a sperm cell and an egg cell combine
define nucleus
a common feature
inside most cells
define protein
a nutrient found in our food that has many different jobs in our bodies
define gene
a certain region of a chromosome that causes a certain protein to be made;
is sometimes related to a certain trait,
define allele
different forms of genes which can cause different forms of proteins which lead to variations in a trait
