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Unit 6 Vocabulary

Across
is the set of genes in our DNA which is responsible for a particular trait
the instructions for your body. There are two types of genes - dominant and recessive.
An individual who is heterozygous for a recessively inherited disorder and who therefore does not show symptoms of that disorder but who may pass on the recessive allele to offspring
is an organized profile of a person's chromosomes.
the study of heredity in biology
The likelihood of an event to occur. Probability is used to measure the chances or likelihood of an event to occur, a hypothesis being correct, or a scientific prediction being true. In biology, it is used in predicting the outcome of a genetic cross or of a random experiment.
alleles that are not expressed if a dominant allele is around
alleles that are expressed over others.
The physical appearance of an organism as distinguished from its genetic makeup.
certain traits that are passed from the parents to the children. Heredity is passed through genes in the DNA molecule.
Down
occurs when a DNA gene is damaged or changed in such a way as to alter the genetic message carried by that gene.
Different copies of the same gene.
are characteristics such as eye color, height, and athletic ability
is considered the father of the science of genetics. Through experimentation he found that certain traits were inherited following specific patterns.
A trait that is controlled by a group of nonallelic genes.
are the young born of living organisms, produced either by a single organism or, in the case of sexual reproduction, two organisms.
explains how characteristics are passed from one generation to the next. Genetic inheritance occurs due to genetic material in the form of DNA being passed from parents to their offspring
A structure in all living cells that consists of a single molecule of DNA bonded to various proteins and that carries the genes determining heredity.
is a long thin molecule made up of something called nucleotides. There are four different types of nucleotides: adenine, thymine, cytosine, and guanine. They are usually represented by their first letter: