Terms in this set (32)
form of a trait that can be hidden by the dominant form of that trait; also refers to the allele
observed form of a trait that hides or masks the recessive form; also refers to the allele
traits controlled by genes located on the sex chromosomes
combination of genes in an organism
outward appearance of an organism, physical traits
condition in which two identical alleles are present for a trait, e.g. HH or hh
condition in which there are two different alleles for a trait, e.g. Hh
one form of a gene for a trait
someone heterozygous for a disease causing gene, they "carry" the gene but do not have the disease
the study of how traits are inherited
a sex-linked genetic blood disorder that is more common in males
a fertilized egg, represented in the squares of a punnett square
how traits are passed on from parents to child
a segment of DNA that codes for a protein leading to a trait
the two chromosomes containing genes that determine gender. In humans only 2 of the chromosomes are this type of chromosome.
a mathematical model to determine probability of inheriting traits
a chromosome with genes unrelated to sex of the person. In humans 44 of the chromosomes are this type of chromosome.
a physical characteristic of an organism
a disease or abnormality that is inherited
a group of puppies, or kittens born together to one set of parents
the likelihood of something occurring
refers to whether a gene someone has determines their phenotype
Sexual reproduction of plants. The movement of pollen from one plant to another to start the production of seeds
Father of genetics. The scientist who started research on heredity by crossing pea plants.
Fusion of male and female gametes. Produces a zygote.
A haploid cell such as an egg or sperm.
A picture of the chromosome pairs of a cell arranged by size and shape.
the alleles of a parent separate into separate gametes - e.g. heterozygous father produces one sperm cell with dominant allele and one sperm cell with recessive allele.
when two or more characteristics are inherited, individual hereditary factors assort independently during gamete production, giving different traits an equal opportunity of occurring together.
Cell or individual having inherited only one allele (instead of two) for a particular gene.
a pair of replicated chromosomes (4 chromatids)
the study of how the environment can alter gene expression or function with no change in the DNA sequence.