Passing It Down
Passing of traits from parents to offspring
What is heredity
The study of traits being passed down through DNA from generation to generation.
What is Genetics?
portion of DNA that controls the traits such
as hair color.
What are genes?
Different forms of a gene
What are alleles?
when an
organism has two identical genes for a trait
What is purebred or homozygous?
Produce offspring that are similar to the
parents.
What is reproduce?
fertilized egg
What is a zygote?
A group of individuals that belong to the
same species and live in the same area.
What is a population?
deoxyribonucleic acid, a self-replicating
material present in nearly all living organisms. It is the
carrier of genetic information.
What is DNA?
when an
organism receives two different genes for a trait
What is hybrid or heterozygous?
Product of reproduction, a new organism
produced by one or more parents
What is offspring?
Any difference between individuals of the
same species.
What is variation?
threadlike structures made of DNA
molecules that contain the genes
What is a chromosome?
ribonucleic acid, also passes along genetic
messages.
What is RNA?
The gene that covers or masks another
gene, controls a trait and symbolized by upper case
letter
What is dominant?
A characteristic that an organism can pass
on to its offspring through its genes.
What is traits?
A picture of all the chromosomes in a cell
arranged in pairs
What is a karyotype?
A chart that shows all the possible
combinations of alleles that can result from a genetic
cross.
the genetic makeup (type of gene).
What is genotype?
the weak gene that does not control trait
and symbolized with lower case letter
What is recessive?
A group of organisms born near the same
time
What is a generation?
A chart or "family tree" that tracks which
members of a family have a particular trait.
What is a pedigree?
The process by which physical and biological
characteristics are transmitted from the parent (or
parents) to the offspring
What is inheritance?
The physical makeup, the organism's
outward traits, how the organism looks.
What is phenotype?
the human practice of breeding animals or
plants that have certain desired traits
What is selective breeding?